Isolation and experimental investigation of caffeine obtained from the leaves of Coffea liberica Hiern (Family Rubiaceae) - Lagera, Maria Rosalinda M.; Castillo, Amorita V. (Quezon City: College of Pharmacy, University of the Philippines, 1979)
​Thesis (Bachelor of Science in Pharmacy)--University of the Philippines, 1979.
Keywords: Caffeine; Kapeng Barako