Drakard, Jane, author
Southeast Asia Program, 1990
Buku Teks
compiled by Teuku Iskandar
Documentatieburean Islam-Christendom , 1999
Buku Referensi
Leiden, Documentatieburean Islam-Christendom
Buku Referensi
Artikel Jurnal
Rockafellar, R. Tyrrell, author
Society for Industrial and Applied Mathematics, 1974
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