., S., S. H. Sutjahyo, N. Wijayanto, P. Hidayat, and R. Kurniawan. “VEGETATION DIVERSITY AND INTENSITY OF PLANT PESTS AND DISEASES IN TWO POLYCULTURE SYSTEMS IN TANGGAMUS DISTRICT”. Jurnal Hama Dan Penyakit Tumbuhan Tropika, vol. 17, no. 2, Oct. 2017, pp. 137-46, doi:10.23960/j.hptt.217137-146.