Chairman, City Planning Board and Surabaya Investment Office, City Government Surabaya, Indonesia, 1965-1976. Project officer Surabaya Industrial Estate Rungkut, 1970-1973. Head Division Urban Development, Surabaya, 1976-1979, assistant to secretary Urban Development, 1979-1982.
Chairman board Malang Region Planning Board, since 1982. Faculty Surabaya Institute of Technology, 1970-1973. Chairman board East Java branch Indonesia Karatedo Institute, Inkai, 1974-1982.
Member Urban Land Institute, Eastern Regional Planning and Housing Association, Association Planning and Housing, Indonesian Association Planners, Indonesian Associate Planners, All Indonesia Engineers Association (vice chairman Surabaya chapter since 1980), East Java Branch Alumni Institute (chairman since 1976), Indonesia-American Binat. Friendship Association (chairman board 1979-1986). Club: Yani Golf (Surabaya).