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Lua i Stíl Chicago (17ú heag.)Bicol, John Paul G., agus Luis F. Razon. "Evaluation of Biodiesel from Canarium Ovatum (pili) Pulp Oil and Psophocarpus Tetragonolobus (winged Bean) Seed Oil." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 2007.
Lua MLA (9ú heag.)Bicol, John Paul G., agus Luis F. Razon. "Evaluation of Biodiesel from Canarium Ovatum (pili) Pulp Oil and Psophocarpus Tetragonolobus (winged Bean) Seed Oil." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 2007.