Kamaruddin, Kamaruddin. “STRATEGI PEMASARAN TERHADAP PENINGKATAN VOLUME PENJUALAN GAS ELPIJI PERSPEKTIF EKONOMI ISLAM”. LAA MAISYIR : Jurnal Ekonomi Islam 4, no. 1 (1). Accessed November 5, 2024. https://journal3.uin-alauddin.ac.id/index.php/lamaisyir/article/view/5089.