Sopsop, L. B., & Buot, I. E., Jr. (2011). Human-forest interaction in Aborlan Guba System, Palawan Island, Philippines: Implications for conservation and management. Asia Life Sciences : the Asian International Journal of Life Sciences.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sopsop, Lita B., و Inocencio E. Buot, Jr. "Human-forest Interaction in Aborlan Guba System, Palawan Island, Philippines: Implications for Conservation and Management." Asia Life Sciences : The Asian International Journal of Life Sciences 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sopsop, Lita B., و Inocencio E. Buot, Jr. "Human-forest Interaction in Aborlan Guba System, Palawan Island, Philippines: Implications for Conservation and Management." Asia Life Sciences : The Asian International Journal of Life Sciences, 2011.