Wiji Lestari, E., I. Haryanto, and S. Mawardi. “Level of Coffee Consumption in Urban Community and Its Determinant Factors: Case Study in Jember District”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 25, no. 3, Dec. 2009, doi:10.22302/iccri.jur.pelitaperkebunan.v25i3.114.