Azida ABA, Farina MHN, Zuhaida MZ, Fauzi B, Hasbullah HBM. Implementation of Open-Ended Laboratory (OEL) in Environmental Engineering Subject for Civil Engineering Diploma Program. 5007 [Internet]. 2018 Mar. 28 [cited 2024 Nov. 22];8(4):173-8. Available from: https://archive.aessweb.com/index.php/5007/article/view/2982