Islahudin, Islahudin, and M. Firman Ramdhan. 2013. “VIBRATION SENSOR BASED ON FLAT KOIL FOR EARTHQUAKE EARLY DETECTION IN LOMBOK NUSA TENGGARA BARAT REGION”. Prisma Sains : Jurnal Pengkajian Ilmu Dan Pembelajaran Matematika Dan IPA IKIP Mataram 1 (2):161-65. https://doi.org/10.33394/j-ps.v1i2.1015.