diff --git a/application/dashlet.class.inc.php b/application/dashlet.class.inc.php
index 2e2945fa4..14876bfc9 100644
--- a/application/dashlet.class.inc.php
+++ b/application/dashlet.class.inc.php
@@ -16,6 +16,7 @@
 //   You should have received a copy of the GNU Affero General Public License
 //   along with iTop. If not, see <http://www.gnu.org/licenses/>
 
+use Combodo\iTop\Application\Helper\WebResourcesHelper;
 use Combodo\iTop\Application\UI\Base\Component\Dashlet\DashletContainer;
 use Combodo\iTop\Application\UI\Base\Component\Dashlet\DashletFactory;
 use Combodo\iTop\Application\UI\Base\Component\Html\Html;
@@ -1702,10 +1703,7 @@ class DashletGroupByPie extends DashletGroupBy
 	{
 		return array_merge(
 			parent::GetJSFilesRelPaths(),
-			[
-				'js/d3.js',
-				'js/c3.js',
-			]
+			WebResourcesHelper::GetJSFilesRelPathsForC3JS()
 		);
 	}
 
@@ -1716,9 +1714,7 @@ class DashletGroupByPie extends DashletGroupBy
 	{
 		return array_merge(
 			parent::GetCSSFilesRelPaths(),
-			[
-				'css/c3.min.css',
-			]
+			WebResourcesHelper::GetCSSFilesRelPathsForC3JS()
 		);
 	}
 
diff --git a/pages/csvimport.php b/pages/csvimport.php
index 896dbe3eb..2f9e6d609 100644
--- a/pages/csvimport.php
+++ b/pages/csvimport.php
@@ -4,6 +4,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
+use Combodo\iTop\Application\Helper\WebResourcesHelper;
 use Combodo\iTop\Application\UI\Base\Component\Alert\AlertUIBlockFactory;
 use Combodo\iTop\Application\UI\Base\Component\Button\ButtonUIBlockFactory;
 use Combodo\iTop\Application\UI\Base\Component\CollapsibleSection\CollapsibleSectionUIBlockFactory;
@@ -663,9 +664,7 @@ EOF
 		$sUnchanged = json_encode(Dict::Format('UI:CSVImportUnchanged_items', $iUnchanged));
 
 		// Add graphs dependencies
-		$oPage->add_linked_stylesheet(utils::GetAbsoluteUrlAppRoot().'css/c3.min.css');
-		$oPage->add_linked_script(utils::GetAbsoluteUrlAppRoot().'js/d3.js');
-		$oPage->add_linked_script(utils::GetAbsoluteUrlAppRoot().'js/c3.js');
+		WebResourcesHelper::EnableC3JSToWebPage($oPage);
 
 		$oPage->add_script(		
 <<< EOF
diff --git a/pages/schema.php b/pages/schema.php
index 25c41c2a2..67c757a67 100644
--- a/pages/schema.php
+++ b/pages/schema.php
@@ -4,6 +4,7 @@
  * @license     http://opensource.org/licenses/AGPL-3.0
  */
 
+use Combodo\iTop\Application\Helper\WebResourcesHelper;
 use Combodo\iTop\Application\UI\Base\Component\Button\ButtonUIBlockFactory;
 use Combodo\iTop\Application\UI\Base\Component\DataTable\DataTableUIBlockFactory;
 use Combodo\iTop\Application\UI\Base\Component\Input\Select\Select;
@@ -538,9 +539,7 @@ function DisplayRelatedClassesGraph($oPage, $sClass)
 		// 3) Processing data and building graph
 		//
 		// - Add graphs dependencies
-		$oPage->add_linked_stylesheet(utils::GetAbsoluteUrlAppRoot().'css/c3.min.css');
-		$oPage->add_linked_script(utils::GetAbsoluteUrlAppRoot().'js/d3.js');
-		$oPage->add_linked_script(utils::GetAbsoluteUrlAppRoot().'js/c3.js');
+		WebResourcesHelper::EnableC3JSToWebPage($oPage);
 		// - Add markup
 		$oPage->add(
 			<<<EOF
diff --git a/sources/application/Helper/WebResourcesHelper.php b/sources/application/Helper/WebResourcesHelper.php
index 3b6860eac..3f644cb31 100644
--- a/sources/application/Helper/WebResourcesHelper.php
+++ b/sources/application/Helper/WebResourcesHelper.php
@@ -20,6 +20,45 @@ use utils;
  */
 class WebResourcesHelper
 {
+	/**
+	 * Add necessary files (JS/CSS) to be able to use d3/c3.js in the page
+	 *
+	 * @param \WebPage $oPage
+	 *
+	 * @throws \Exception
+	 */
+	public static function EnableC3JSToWebPage(WebPage &$oPage): void
+	{
+		foreach (static::GetCSSFilesRelPathsForC3JS() as $sFile) {
+			$oPage->add_linked_stylesheet(utils::GetAbsoluteUrlAppRoot().$sFile);
+		}
+
+		foreach (static::GetJSFilesRelPathsForC3JS() as $sFile) {
+			$oPage->add_linked_script(utils::GetAbsoluteUrlAppRoot().$sFile);
+		}
+	}
+
+	/**
+	 * @return string[] Relative URLs to the CSS files necessary for d3/c3.js
+	 */
+	public static function GetCSSFilesRelPathsForC3JS(): array
+	{
+		return [
+			'css/c3.min.css',
+		];
+	}
+
+	/**
+	 * @return string[] Relative URLs to the JS files necessary for d3/c3.js
+	 */
+	public static function GetJSFilesRelPathsForC3JS(): array
+	{
+		return [
+			'js/d3.js',
+			'js/c3.js',
+		];
+	}
+
 	/**
 	 * Add necessary files (JS/CSS) to be able to use simple_graph in the page
 	 *