How many movies have Billy J. Budiardjo and Tantra Surjadi collaborated on?

They have worked on 7 movies together! Their first movie together was Sorga Dunia di Pintu Neraka (1983) while their highest rated movie together was Kidung Cinta (1985). They have not worked together since Surgaku Nerakaku (1994). They are most known for their drama films together.