Olzhabay A, Urkimayeva P, Kenessova Z, Yespenbetova S, El-Sayed Negim. Development of a technology for processing waste plastic bottles and bags to obtain various types of biodegradable polymer films. IJBCh [Internet]. 2022 Jun. 30 [cited 2024 Dec. 16];15(1):107-16. Available from: https://ijbch.kaznu.kz/index.php/kaznu/article/view/613