TY - SER TI - INTERNATIONAL SCIENTIFIC JOURNAL OF ENGINEERING AND TECHNOLOGY (ISJET) Volume 2, Number 2 July - December 2018 SN - 2586-8527 UR - https://isjet.pim.ac.th/uploads/content/2019/01/o_1d098jsl41j3r12321o411uav1p5a.pdf ER -