Zárate, Néstor Antonio Heredia, et al. “Yield and Gross Income of Bunching Onion and Coriander in Monocrop and Intercrop Systems”. Semina: Ciências Agrárias, vol. 26, no. 2, June 2005, pp. 149-54, doi:10.5433/1679-0359.2005v26n2p149.