SHARMA, S K; SINGH, JAGDEV. Productivity and economics of castor (Ricinus communis) – based intercropping systems under rainfed conditions. The Indian Journal of Agricultural Sciences, Delhi, India, v. 84, n. 3, p. 432–5, 2014. DOI: 10.56093/ijas.v84i3.38602. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/38602. Acesso em: 24 jul. 2026.