Ardiyani, F., E. Setiti Wida Utami, and H. Purnobasuki. “Optimation of Auxin and Cytokinin on Enhanced Quality and Weight of Coffea Liberica Somatic Embryos”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 37, no. 1, Apr. 2021, doi:10.22302/iccri.jur.pelitaperkebunan.v37i1.460.