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Buku Referensi
Charles C. Gillispie, editor
Dover Publications, 1959
Buku Referensi
edited with an introduction and notes by Charles C. Gillispie
Dover Publications, 1959
Buku Referensi
Maria Teresa Rani, auhtor
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2015
UI - Makalah dan Kertas Kerja
Montgomery, B.
The Word Publishing Comp, [date of publication not identified]
Buku Teks