Tran , M. Q., V. B. Nguyen, D. D. Pham, P. T. Hoang, N. L. Pham, and T. M. L. Le. “Mechanical Properties and Thermal Stability of Poly (L-Lactic Acid) Treated by Co-60 Gamma Radiation ”. Nuclear Science and Technology, vol. 3, no. 2, June 2013, pp. 21-28, doi:10.53747/nst.v3i2.257.