De Padua, L., Lugod, G. C., & Pancho, J. V. (1987). Handbook on Philippine medicinal plants: Ludivina De Padua, Gregorio C. Lugod, Juan V. Pancho. Documentation and Informatipn Section, Office of the Director of Research, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)De Padua, Ludivina, Gregorio C. Lugod, و Juan V. Pancho. Handbook on Philippine Medicinal Plants: Ludivina De Padua, Gregorio C. Lugod, Juan V. Pancho. Los Banos: Documentation and Informatipn Section, Office of the Director of Research, University of the Philippines, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)De Padua, Ludivina, et al. Handbook on Philippine Medicinal Plants: Ludivina De Padua, Gregorio C. Lugod, Juan V. Pancho. Documentation and Informatipn Section, Office of the Director of Research, University of the Philippines, 1987.