Regidor, A. (2016). De Leon affirmed as Engineering dean. UPDate Diliman.
Lua i Stíl Chicago (17ú heag.)Regidor, Anna. "De Leon Affirmed as Engineering Dean." UPDate Diliman 2016.
Lua MLA (9ú heag.)Regidor, Anna. "De Leon Affirmed as Engineering Dean." UPDate Diliman, 2016.
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