1. Aguda, L. A., Tamayo, R., & Leoncion, B. (2013). Effects off heritage tourism to the municipality of Taal, Batangas, Philippines.
2. Alamer, R. L. (2015). Effects of discussion-interaction method on the performance of grade IV pupils in Science [Unpublished master's thesis]. Sorsogon State College, Sorsogon City.
3. Almario, V. S. (2015). KWF Manwal sa Masinop na pagsulat (5th ed.). Komisyon ng Wikang Filipino.
4. Angara, B. J. (n.d.). House Bill 7165 "Lesbian Gay Rights Act of 1999".
5. Arambuyong, J. E. (2018). Istilo sa Pagtuturo ng Balarila at Panitikang Filipino [Unpublished master's thesis]. Sorsogon State College, Sorsogon City.