Devananda, Avellyn Shinthya Sari, Yazid Fanani, & Nazario Gomez. (2025). Comparison Of Quarry Resource Estimation Using Cross Section And Contour Methods At PT. X, East Java, Indonesia. Journal of Innovative and Creativity, 5(2), 9833–9853. https://doi.org/10.31004/joecy.v5i2.1279