Sofian, H. O., Hartatik, H., Sunarningsih, S., Susanto, N. N., Dhaneswara, G. V., Sulistiyo, R. B., & Karyanantio, A. (2023). First Experimental Iron Process Based on The Montalat Iron Sites in Central Kalimantan – Indonesia. KALPATARU, 32(2), 137–148. https://doi.org/10.55981/kpt.2023.1078