Hidayatullah AS, Trismawati T, Tjahjaningsih YS. Implementation of Interactive Digital Marketing with the 7P Marketing Concept to Increase Customer Interest on Fly Ash and Bottom Ash Products at PT PJB UP Paiton: Penerapan Interactive Digital Marketing Dengan Konsep 7P Marketing Untuk Menaikkan Customer Interest Produk Fly Ash dan Bottom Ash di PT PJB UPPaiton. PELS [Internet]. 2022 Dec. 22 [cited 2025 Jul. 1];3. Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/1311