“Ekspresi β -1,3 glukanase dan kitinase pada tanaman kopi arabika (Coffea arabica L.) tahan dan rentan karat daun Expression of β-1,3 glucanase and chitinase of arabica coffee (Coffea arabica L.) resistant and susceptible against leaf rust disease”, MP, vol. 72, no. 2, Mar. 2016, doi: 10.22302/iribb.jur.mp.v72i2.122.