PUSPA YOGA, A.; SYAHNI, R.; HASNAH, H. TECHNICAL EFFICIENCY OF COFFEE FARMING IN LIMA PULUH KOTA REGENCY, WEST SUMATRA PROVINCE. Jurnal Ekonomi, [S. l.], v. 12, n. 3, p. 1786–1796, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/2341. Acesso em: 11 may. 2026.