Ngueanngam, Nachaphon, Tanchanok Chaivisuthangkura, Nahathai Asawutmangkul, Benchawan Jityuti, and Pornthip Boonsri. 2022. “Molecular Design of the Triphenylamine Substitution on Isoindigo-Based As Promising Hole Transport Materials for Perovskite Solar Cell”. Science Essence Journal 38 (2):48-61. https://ejournals.swu.ac.th/index.php/sej/article/view/14886.