A comparative study of feature extraction using PCA and LDA for face recognition. - Erwin Hidayat; Nur A. Fajrian; Azah Kamilah Muda; Yun-Huoy Choo; Sabrina Ahmad (IAS, 2011)

Artificial intelligence in digital image processing: A bibliometric analysis. - Erwin Hidayat; Khafiizh Hastuti; Azah Kamilah Muda (Intell. Syst. Appl., 2025)