Nordin, Nor Hidayati Diyana, M. Hanif Farhan Rozi, and Farahiyah Jasni. “Muscle Activity Detection of Human Upper Limb Using Piezoelectric Based Sensory System”. PERINTIS eJournal 13, no. 2 (December 31, 2023): 31–39. Accessed October 3, 2025. https://perintis.org.my/ejournalperintis/index.php/PeJ/article/view/156.