Philippine Association for Inter-cultural Development. (1993). Communal title : valid option for land tenure for tribal Filipinos?: Pafid's silver anniversary contribution for the international year for indigenous peoples. Philippine Association for Inter-cultural Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippine Association for Inter-cultural Development. Communal Title : Valid Option for Land Tenure for Tribal Filipinos?: Pafid's Silver Anniversary Contribution for the International Year for Indigenous Peoples. Quezon City: Philippine Association for Inter-cultural Development, 1993.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippine Association for Inter-cultural Development. Communal Title : Valid Option for Land Tenure for Tribal Filipinos?: Pafid's Silver Anniversary Contribution for the International Year for Indigenous Peoples. Philippine Association for Inter-cultural Development, 1993.