NIK ZAIYUMI, N. N. S., Syed Zin, S. M. F., & Wan Jusoh, W. A. (2025). Characteristic of Insulation Panel Using Waste Spent Coffee Grounds (SCG) and Cardboard (CB). Progress in Engineering Application and Technology, 6(1), 231-239. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/19183