FACTORIAL DESIGN AND SURFACE METHOD TO OPTIMIZE ETHYLIC BIODIESEL PRODUCTION FROM CHICKEN WASTES: Original scientific paper. Chem. Ind. Chem. Eng. Q. [Internet]. 2021 Jul. 14 [cited 2024 Nov. 24];27(2):155-63. Available from: https://www.ache-pub.org.rs/index.php/CICEQ/article/view/838