PAREEK, S K; SRIVASTAVA, V K; MAHESHWARI, M L; GUPTA, R. Performance of advance opium poppy (Papaver somniferum) selections for latex, morphine and seed yields. The Indian Journal of Agricultural Sciences, Delhi, India, v. 65, n. 7, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/18899. Acesso em: 29 oct. 2025.