Bellwood, Peter; Fox, James; Tryon, Darrell. The Austronesians: Historical and comparative perspectives. Department of Anthropology, Australian National University. 1995. ISBN 0-7315-2132-3.
Lobel, Jason William; Tria, Wilmer Joseph S. An Satuyang Tataramon: A Study of the Bikol language. Lobel & Tria Partnership Co. 2000. ISBN 971-92226-0-3.
Mintz, Malcolm Warren. Bikol. Facts About the World's Languages: An Encyclopedia of the World's Major Languages, Past and Present. 2001. ISBN 0-8242-0970-2.
Sundita, Christopher Allen. In Bahasa Sug: An Introduction to Tausug. Lobel & Tria Partnership, Co. 2002. ISBN 971-92226-6-2.
Sundita, Christopher. Languages or Dialects?. Understanding the Native Tongues of the Philippines. [July 28, 2005]. (原始内容存档于June 16, 2006).
Yap, Fe Aldave. A Comparative Study of Philippine Lexicons. Institute of Philippine languages, Department of Education, Culture, and Sports. 1977. ISBN 971-8705-05-8.
Zorc, R. David. The Bisayan dialects of the Philippines: Subgrouping and reconstruction. Pacific Linguistics. 1977, C (44).
Zorc, R. David. Hiligaynon. Facts About the World's Languages: An Encyclopedia of the World's Major Languages, Past and Present. 2001.
Viray, Joseph Reylan B. Dagang Simbahan. Makata International Journal of Poetry. 2006, 7 (12).
de la Rosa, Luciano. El Filipino: Origen y Connotación. El Renacimiento Filipino. 1960.
Lawrence R. Reid webpage of Dr. Lawrence A. Reid. Researcher Emeritus of linguistics at the University of Hawai'i at Manoa. Has researched Philippine languages for decades.
Tagalog Translator Online Online dictionary for translating Tagalog from/to English, including expressions and latest headlines regarding the Philippines.