Rohit M. Navale, Dr. A. B. Kanase Patil, Prof. J. L. Minase, Dr. Pandhare A. P. “Study of Novel Piezo-Actuated XYθ Z Micropositioning Mechanism Using Piezoelectric Actuator”. Design Engineering, May 2021, pp. 1002 -12, http://www.thedesignengineering.com/index.php/DE/article/view/1634.