Nor Syazwani Mat Salleh, Analisa Hamdan, Norakmal Abdullah, Harleny Abd Arif. Action Research for the Computer Graphics Studio Course Based on Activity Theory and Semiotic Theory. iJTvET [Internet]. 2020 Jan. 8 [cited 2026 Mar. 13];1(1):46-53. Available from: https://journal.pktm.com.my/index.php/ijtvet/article/view/10