Abrena, J., Endaya, V. C., Tan, L., & Zoleta, Z. (1999). A Feasiblity study on WeldPRO 3000 A Switchmode Welding Machine. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Abrena, Jasmin, Victor Carlo Endaya, Lawrence Tan, agus Zarah Zoleta. A Feasiblity Study on WeldPRO 3000 A Switchmode Welding Machine. Diliman, Quezon City: College of Engineering, 1999.
Lua MLA (9ú heag.)Abrena, Jasmin, et al. A Feasiblity Study on WeldPRO 3000 A Switchmode Welding Machine. College of Engineering, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.