Wirahadi Siregar, Najib, Jahrizal, and Ufira Isbah. “COMPETITIVE ANALYSIS OF GOAT FARMING INDUSTRY IN SIAK DISTRICT, RIAU PROVINCE”. Journal of Sustainable Entrepreneur Region Industry 3, no. 1 (February 9, 2026): 29–41. Accessed October 12, 2026. https://journal.ypmki.com/index.php/joseri/article/view/53.