Bukhari, Syed Salman Effect of ultrasound energy on the zeolitization of chemical extracts from fused coal fly ash. [electronic resource] - Ultrasonics sonochemistry Jan 2016 - 47-53 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1873-2828 Standard No.: 10.1016/j.ultsonch.2015.06.031 doi