Quanjin, M., Z. Zhenggang, M. Rejab, M. Idris, B. Zhang, and M. Abdullah. “Design and Fabrication of the Portable Artwork Preservative Device (PAPD)”. Journal of Modern Manufacturing Systems and Technology, vol. 3, Oct. 2019, pp. 31-38, doi:10.15282/jmmst.v2i2.2487.