R. E. Senewe, F. X. Wagiman, Marietje Pesireron, and Esther Kembauw, CENGKEH INDONESIA SEJARAH DAN MASA DEPAN. PT. Ghani Press Group, 2026. Accessed: Jul. 22, 2026. [Online]. Available: https://e-book.ghanipress.com/index.php/ghanipress/catalog/book/76