From Wikipilipinas: The Hip 'n Free Philippine Encyclopedia
Greggy Liwag was a popular sexy actor in the 80s. In time, when sex films were at their peak, he got involved in a lot of these projects.
- Francisco, Butch. The Stars of the '80s: Where are they now? The Philippine STAR Entertainment. 2009
- From WikiPilipinas, Hip n' Free Philippine Encyclopedia