Setyowati, Setyowati, 		Rahayu, Endang, 		Irianto, Heru, 		Handayani, Sugiharti, 		Sundari, Mei, AND 		Widadie, Fanny.
" Robusta Coffee Marketing Efficiency in Magetan Regency, East Java Province" <em>SOCA: Jurnal Sosial Ekonomi Pertanian</em> [Online], Volume 19 Number 2 (30 July 2025)