Mohamad Isa, M., N. Ahmad, F. Packeer, and M. Missous. 2015. “Optimization of Gate Recess Step and Elimination of the Dome Effect for Highly Reliable and Reproducible Novel PHEMT Device”. Journal of Engineering and Technology (JET) 6 (1):13-23. https://jet.utem.edu.my/jet/article/view/119.