Alfiati, Siska. “Analisis Komparasi Efisiensi Usahatani Karet Sebelum Dan Saat Pandemi Covid-19 Di Desa Pinang Banjar Kabupaten Muara Enim”. Management Studies and Entrepreneurship Journal (MSEJ) 3, no. 1 (January 31, 2022): 223–231. Accessed July 6, 2025. https://www.yrpipku.com/journal/index.php/msej/article/view/416.