APA (7th ed.) Citation

Riyanto, A. (1989). Bahan galian: Industri mangan. Dep. Pertambangan dan Energi PPTM.

Chicago Style (17th ed.) Citation

Riyanto, Asril. Bahan Galian: Industri Mangan. Dep. Pertambangan dan Energi PPTM, 1989.

MLA (8th ed.) Citation

Riyanto, Asril. Bahan Galian: Industri Mangan. Dep. Pertambangan dan Energi PPTM, 1989.

Warning: These citations may not always be 100% accurate.