Singsang, W.; Suetrong, J.; Choedsanthia, T.; Srakaew, N. L.- ong; Jantrasee, S.; Prasoetsopha, N. . Properties of Biodegradable Poly(butylene Succinate) Filled With Activated Carbon Synthesized from Waste Coffee Grounds. J. Mater. Sci. Appl. Energy. 2021, 10, 87-95.