Joko Mariyono, author
2014
Artikel Jurnal
edited by T. Marzuki Jacob
Universitas Sumatera Utara, 1994
Buku Referensi
Cole, Fay-Cooper, author
D. Van Nostrand, 1945
Buku Teks
Mohd. Daud bin Abdul Rahman Director General of Printing, 1974
Buku Teks
Uhlenbeck, E. M. (Eugenius M.), author
Mouton, [date of publication not identified]
Buku Teks