yunanik, yunanik. “Analisis Keekonomian Dalam Membangun Bisnis Pemasaran Bio Briket Tongkol Jagung Di Tuban: Pemasaran Biobriket Melalui Digital Marketing Atau E-Commerce”. Eastasouth Journal of Positive Community Services 1, no. 02 (Januari 30, 2023): 95–104. Diakses September 19, 2024. https://ejcs.eastasouth-institute.com/index.php/ejpcs/article/view/67.