Stanley Frenovsky Leowardi, and Edy Yulianto Putra. “Implementasi Promotion Mix Pada PT Batam Roda Jaya”. Jurnal Pengabdian kepada Masyarakat Nusantara 3, no. 2.2 (January 29, 2023): 1748-1754. Accessed November 7, 2025. http://ejournal.sisfokomtek.org/index.php/jpkm/article/view/656.