SUWANBOON, Sumetha, Tanattha RATANA, and Thanakorn RATANA. 2011. “Effects of Al and Mn Dopant on Structural and Optical Properties of ZnO Thin Film Prepared by Sol-Gel Route”. Walailak Journal of Science and Technology (WJST) 4 (1):111-21. https://wjst.wu.ac.th/index.php/wjst/article/view/129.