Artikel Jurnal
Artikel Jurnal
Ewen, Dale, author
Prentice-Hall, 1983
Buku Teks
organized by University of Indonesia in cooperation with Japan Society for the Promotion of Science
Faculty of Graduate Studies University of Indonesia, 1989
Buku Teks
Katz, Joseph, 1910-
McGraw-Hill , 1956
Buku Teks