“Analisis Hubungan Coping Strategi Dengan Pendapatan Dan Ketahanan Pangan Petani Karet Di Desa Pagur, Payabungan Timur, Mandailing Natal, Sumatera Utara”. Management Studies and Entrepreneurship Journal (MSEJ) 4, no. 6 (November 20, 2024): 8772–8781. Accessed May 24, 2026. https://journal.yrpipku.com/index.php/msej/article/view/3634.