Tanjung, Azhar
Acta Medica Indonesiana, 2002
Artikel Jurnal
edited by C.E. Hormaeche, C.W. Penn, C.J. Smyth
Cambridge University Press, 1992
Buku Teks
James Njuguna
Springer Berlin Springer, 2016
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Michaelian, Kourken
Oxford University Press, 2016
eBooks
Sutan Takdir Alisjahbana
Dian Rakyat, 1987
Buku Teks