Sixto Ylagan Orosa Sr. (August 6, 1891 – April 21, 1981) was a Filipino physician and writer.
Background
Orosa was born in Taal. He was the brother of María Orosa.
Books Books written by Orosa, includes: The Sulu Archipelago and Its People, World Book Company, 1931 Through Three Generations, 1976 Jose Rizal: Man and Hero, Si Jose Rizal: ang pambansang bayaning Pilipino, S.Y. Orosa, 1958
References