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		Yudha, D., 		Erilurahman, R., 		Trijoko, T., 		Alawi, M., & 		Tarekat, A.
2014 Dec  1.  KEANEKARAGAMAN JENIS KATAK DAN KODOK (ORDO ANURA)  DI SEPANJANG SUNGAI OPAK PROPINSI DAERAH ISTIMEWA YOGYAKARTA. Jurnal Biologi Udayana. [Online] 18:2