Zárate, Néstor Antonio Heredia, et al. “EFFECTS OF CHICKEN MANURE AND HARVESTING DATE ON ‘TODO ANO’ GREEN ONION YIELD AND GROSS INCOME”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 33, no. 2, Nov. 2007, pp. 73-78, https://doi.org/10.5216/pat.v33i2.2350.