“A REVIEW ON 4D ADDITIVE MANUFACTURING - THE APPLICATIONS, SMART MATERIALS & EFFECT OF VARIOUS STIMULI ON 4D PRINTED OBJECTS”.
Jurnal Teknologi (Sciences & Engineering) 85, no. 5 (August 21, 2023): 63–71. Accessed April 6, 2025.
https://journals.utm.my/jurnalteknologi/article/view/19889.