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^ pp. 40-41 Father Gabriel Casal & Regalado Trota Jose, Jr., Eric S. Casino, George R. Ellis, Wilhelm G. Solheim II, The People and Art of the Philippines, printed by the Museum of Cultural History, UCLA (1981)

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Guillermo, A.R. (2012). History Dictionary of the Philippines. Scarescrow Press. p 275

^ National Museum of the Philippines. (2014). Manunggul Jar. Retrieved November 20, 2015 from National Museum, Manunggul jar.

Fox, R.B. (1970). The Tabon Cave: archaeological explorations and excavations on Palawan Island, Philippines. National Museum. University of Michigan. p 112-114

^ Chua, M. (1995, April 27). The Arts of the Philippines. Retrieved November 22, 2015, from The manunggul jar as a vessel of history

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Wilhelm G. Solheim, II, "The Nusantao Hypothesis: The Origins and Spread of Austronesia Speakers," Asian Perspectives XXVI, 1984-85, pp. 77-78; and Peter Bellwood, "Hypothesis for Austronesian Origins," Asian Perspectives, XXVI, 1984-85, pp. 107-117.

Zeus A. Salazar, "Ang Kamalayan at Kaluluwa: Isang Paglilinaw ng Ilang Konsepto sa Kinagisnang Sikolohiya" in Rogelia Pe-Pua, ed., Sikolohiyang Pilipino: Teorya, Metodo at Gamit (Quezon City: Surian ng Sikolohiyang Pilipino, 1982) pp. 83-92; and Prospero R. Covar, Kaalamang Bayang Dalumat ng Pagkataong Pilipino, p. 9-12 (Lekturang Propesoryal bilang tagapaghawak ng Kaalamang Bayang Pag-aaral sa taong 1992, Departamento ng Antropolohiya, Dalubhasaan ng Agham Panlipunan at Pilosopiya, Unibersidad ng Pilipinas. Binigkas sa Bulwagang Rizal, UP Diliman, Lungsod Quezon, Ika-3 ng Marso, 1993).

"Manunggul Jar And The Early Practice Of Burial In The Philippines". 4 August 2011. Retrieved 15 November 2015.