Aziz, A. M., Widjaja, T. and Ni’mah, H. (2024) “Synthesis of Poly Lactic Acid from Lactic Acid Using Direct Polycondensation Method Using Al(DS)3 and AlCl3 Catalysts”, Journal of Research and Technology, 10(1), pp. 35–43. doi: 10.55732/jrt.v10i1.1163.