Ringor, A. A., & Obille, K. L. B. (2012). Promosyon ng Filipino bilang wikang pambansa: Ang mga karanasan ng University of the Philippines Main Library. School of Library and Information Studies, University of the Philippines Diliman.
Chicago Style (17th ed.) CitationRingor, Abigail A., and Kathleen Lourdes B. Obille. Promosyon Ng Filipino Bilang Wikang Pambansa: Ang Mga Karanasan Ng University of the Philippines Main Library. Quezon City: School of Library and Information Studies, University of the Philippines Diliman, 2012.
MLA (9th ed.) CitationRingor, Abigail A., and Kathleen Lourdes B. Obille. Promosyon Ng Filipino Bilang Wikang Pambansa: Ang Mga Karanasan Ng University of the Philippines Main Library. School of Library and Information Studies, University of the Philippines Diliman, 2012.