Dina Ariyanti, Halimatun Saddiah Siregar, and Risky Pratama Sianipar. 2025. “ Exploring Opportunities and Challenges in the Tempeh Business to Remain Existent and Develop”. Young Journal of Social Sciences and Humanities 1 (1):188-99. https://journal.sufiya.org/index.php/yjssh/article/view/234.