Rybczynski, Witold
Dorset Prism Press 1980, 1980
Buku Teks SO
Elsevier Science Inc., 660, 2018
Majalah, Jurnal, Buletin
Symposium on Appropriate Technology. November 30, 1976, Jakarta
Jakarta: University of Indonesia, 1977
Buku Teks
CommIT Journal,
Majalah, Jurnal, Buletin
Faculty of Engineering. Universitas Indonesia, 2010
Majalah, Jurnal, Buletin