[13] Ozkan S.G., Veasey T.J,
Effect of Simultaneous Ultrasonic Treatment on Colemanite Flotation, Kemal M., Arslan V., Akar A., Canbazoghlu M. (eds.), Changing Scopes in Mineral Processing, Proceedings of the 6th International Symposium, Balkema,
Roterdam, 277-281 (1996).
[18] Haghi H., “Investigation of Ultrasonic-Microwave in Pretreatment of Industrial Silicate Ores”, Ph.D. Thesis, University of Tehran, Tehran, Iran (2017).
[28] Filippov L.O., Samyguin V.D., Severo V.V., Matinin A.S., Filippova I.V., The Effect of the Ultrasonic Treatment of the Air-Pulp Upon the Flotation, on 24-28 September, “Int. Miner. Process. C. (IMPC) Proceedings”, New Delhi, India (2012).