Yusuf, M., Yusnizal Firdaus, Muhammad Riska Maulana, Al Hushori, and AR Sopiyan. “Analysis of the Obstacles Faced by Smallholding Farmers in Improving Rubber Production After COVID-19 in South Sumatra Province, Indonesia”. Futurity of Social Sciences 3, no. 3 (August 27, 2025): 4–23. Accessed July 26, 2026. https://futurity-social.com/index.php/journal/article/view/168.