Plapito, A. S., Aisyah, A. and Asnur, P. (2021) “Testing the Effectiveness of Azotobacter Bacteria and Organic Materials on the Growth, Production, Assembly of Plant N and Soil N Availability in Kailan Plants (Brassica Oleraceae)”, Gontor Agrotech Science Journal, 7(1), pp. 57–89. doi: 10.21111/agrotech.v7i1.5731.