Sambudi, N. S., Radini, F. A., Ahmad Kamal, N. . and Jusoh, N. (2025) “Modification of Polylactic Acid with Eggshell Filler as Biodegradable Composite”, Journal of Engineering and Technological Sciences, 57(4), pp. 519–529. doi: 10.5614/j.eng.technol.sci.2025.57.4.7.