Angin, Chornelius, 		Pakpahan, Helena, AND 		Nababan, Manaor.
" Technical Efficiency Analysis of Rice Farming in Deli Serdang Regency: A Data Envelopment Analysis (DEA) Approach" <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], Volume 16 Number 3 (9 January 2024)