Isutsa, D., R. Mayoli, A. Nyende, and C. Mweu. “Evaluation of Endogenous Sugars, Chlorogenic Acid and Caffeine Associated With Direct Somatic Embryogenesis of Coffee (Coffea Arabica L.)”. JOURNAL OF ADVANCES IN AGRICULTURE, Vol. 8, no. 1, May 2018, pp. 1279-92, doi:10.24297/jaa.v8i1.7376.