Dedy IrawanJ., AdriantantriE., Arta TrirensilaY., HasanM. Z., Teguh YudistiraV., and HarhabK. “APLIKASI TEST ONLINE PADA SD LABORATORIUM UM MALANG”. Industri Inovatif : Jurnal Teknik Industri, Vol. 6, no. 1, Feb. 2016, pp. 45-48, https://ejournal.itn.ac.id/index.php/industri/article/view/967.