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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিADIPA Seminar (1991 : University of the Philippines, Diliman), Romeo B. Ocampo, এবং Oscar M. Alfonso. Alternative Delivery Systems for Public Services: Health Care, NGO's, Credit, Cooperatives. [S.l.]: Association of Development Research and Training Institutes of Asia and the Pacific, 1995.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিADIPA Seminar (1991 : University of the Philippines, Diliman), et al. Alternative Delivery Systems for Public Services: Health Care, NGO's, Credit, Cooperatives. Association of Development Research and Training Institutes of Asia and the Pacific, 1995.