Ariyanti, W., Suryantini, A. and Jamhari, J. (2019) “Is it More Profitable to Sell Ground Coffee?”, Pelita Perkebunan (a Coffee and Cocoa Research Journal), 35(1), pp. 59-69. doi: 10.22302/iccri.jur.pelitaperkebunan.v35i1.351.