Setyowati, N., Nurjanah, U., Utami, R. S., Muktamar, Z., and Fahrurrozi, F., “Allelopathic effect of sorghum root extract and its potential use as a bioherbicide”, Int. J. Agric. Tech., vol. 17, no. 6, pp. 2317–2332, Nov. 2021.