Buco, G. U., & De Pio, S. A. (2014). Sum: Teeth tales (50th anniversary edition.). University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED).
Lua i Stíl Chicago (17ú heag.)Buco, Gerald U., agus Simkin Angelo De Pio. Sum: Teeth Tales. 50th anniversary edition. Quezon City: University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.
Lua MLA (9ú heag.)Buco, Gerald U., agus Simkin Angelo De Pio. Sum: Teeth Tales. 50th anniversary edition. University of the Philippines National Institute for Science and Mathematics Education Development (UP NISMED), 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.