Siregar, Ade Perdana, Teguh Setiawan Wibowo, Pandu Adi Cakranegara, Uli Wildan Nuryanto, and Muhammad Iqbal Fajri. “Marketing Mixture Analysis On Product Sales Increase”. Enrichment : Journal of Management 12, no. 3 (August 30, 2022): 2469-2476. Accessed October 26, 2025. http://enrichment.iocspublisher.org/index.php/enrichment/article/view/685.