Riyadh M. EFFECT OF USE OF RICE HARVESTING TECHNOLOGY ON RICE FARMERS EARNING AND RICE HARVEST WORK IN SUKAMANDI VILLEGE DISTRICT DELI SERDANG OF NORTH SUMATERA. SOSIAL DAN EKONOMI PERTANIAN [Internet]. 24Nov.2019 [cited 3May2024];12(2):46 -54. Available from: https://jurnalfp.uisu.ac.id/index.php/sep/article/view/22