AMIR, Indra Tjahaja; INDAH, Pawana Nur; WIDAYANTI, Sri. Farmers Perception on Application of Technology and Economics Innovation of Spice Coffee. Nusantara Science and Technology Proceedings, Malang, Indonesia, p. 208–212, 2018. Disponível em: https://nstproceeding.com/index.php/nuscientech/article/view/35. Acesso em: 31 jul. 2025.