edited by S.S. Hsueh and M.K. Tadjudin
Universitas Indonesia , 1976
Buku Teks
Proccedings on symposium on appropriate technology
Universuty of Indonesia, 1976
Buku Referensi
Published for the International Federation of Automatic Control by Pergamon Press, 1983
Buku Teks
edited by Mathew J. Betz, Pat McGowan and Rolf T. Wigand
Duke Press Policy Studies, 1984
Buku Teks
Rybczynski, Witold
Dorset Prism Press 1980, 1980
Buku Teks SO