Rdirector, writer, miscellaneousRobert Yap Diangco4 creditsNo biography recorded yet.Directing (3)Pag-ibig at kagitinganPag-ibig at kagitingan1979 · DirectorSagisag ng katapanganSagisag ng katapangan1976 · DirectorConcentration Camp. No. 5Concentration Camp. No. 51975 · DirectorWriting (1)Concentration Camp. No. 5Concentration Camp. No. 51975 · story & screenplay