LAJAST-Journal of Science and TechnologyISSN-2545-5583 (online) VOLUME 1 NO.1 VOLUME 1 NO.2 VOLUME 2 NO.1 VOLUME 2 NO.2 VOLUME 3 NO.1 VOLUME 4 NO.1 VOLUME 4 NO.2 VOLUME 4 NO.3 VOLUME 4 NO.4
