other indonesian architects active during the period were sudarsono, soehamir and silaban. silaban worked as head of the genie in pontianak, west kalimantan from 1937, was appointed as director of the municipal works of bogor in 1942 at the beginning of world war. he completed this position until 1965, interrupted in 1951 for one year architectural study at "academie van bouwkunst" in amsterdam. he would become one of indonesia's most renowned architects when his design for the largest mosque in southeast asia was chosen.