Oktoyoki, H., and S. Siswahyono. “Comparative Study of Red-Picked and Random-Picked Robusta Coffee Farming Businesses Among Small Farmers in Rejang Lebong, Bengkulu.”. GEOFORUM Jurnal Geografi Dan Pendidikan Geografi, Vol. 2, no. 2, Dec. 2023, pp. 108-17, doi:10.30598/geoforumvol2iss2pp108-117.