Poojari, M., Vardhan, H., Jathanna, H.M. and Reddy, D.G. 2023. Microwave and Ultrasonic Pretreatment-Assisted Upgradation of Iron Ore of Karnataka Region from India. Journal of Mines, Metals and Fuels. 71, 10 (Nov. 2023), 1359–1373. DOI:https://doi.org/10.18311/jmmf/2023/33576.