“Keberlanjutan Perdagangan Karet Alam Indonesia Ke Pasar Strategis: Perbandingan OLS Dan PPML Dalam Regresi Data Panel: The Sustainability of Indonesian Natural Rubber Trade in Strategic Markets: A Comparison of OLS and PPML in Panel Data Regression”. 2026. Indonesian Journal of Agricultural Resource and Environmental Economics 5 (1): 52-66. https://doi.org/10.29244/jgesms61.