Siti Anggun Ramadhani Br Sinaga, Desi Indah Safitri, and Muhammad Rasya. “Marketing Strategies for ‘Pak De’s Tempeh Chips’: Enhancing Business Income and Performance”. Young Journal of Social Sciences and Humanities 1, no. 1 (December 31, 2025): 212–224. Accessed February 11, 2026. https://journal.sufiya.org/index.php/yjssh/article/view/236.