Negara, Awang Subang. “ALTERATION AND MINERALIZATION STUDIES IN THE JEBLOGAN AREA, KARANGTENGAH, WONOGIRI, CENTRAL JAVA”. KURVATEK 9, no. 1 (April 17, 2024): 73-82. Accessed November 23, 2024. //journal.itny.ac.id/index.php/krvtk/article/view/4687.