A’mallina, A. Y. and Astono, J. (2015) “The effects of giving ‘kecek’grasshopper(Orthoptera)stimulatorfrequencies of3000 Hz on teak (Tectona grandis)seeding and peanut(Arachis hypogeae, L) planting”, Jurnal Sains Dasar, 3(2). doi: 10.21831/jsd.v3i2.4169.