Vacquier, Victor, author
Elsevier, 1972
Buku Teks
Seibold, Eugen
Springer-Verlag, 1982
Buku Teks
Himawanto, author
Pusat Jasa Perpustakaan dan Informasi, 2019
Artikel Jurnal
Gilluly, James, author
W.H. Freeman, 1959
Buku Teks
Lange, Oktavii Konstantinovich, 1883-1975, author
Foreign Languages Publishing House , 196?
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