Sustainable environmental engineering by Tang, Walter Z., Sillanpää, Mika

Available for University of the Philippines Diliman College of Engineering via e-Textbook Reserves under Vital Source. Click here to access
Also available remotely for University of the Philippines Diliman College of Engineering. Click here to access thru Remote Access via EZProxy

Ultrasound technology in green chemistry by Sillanpää, Mika

Available for University of the Philippines Diliman via SpringerLink. Click here to access