GUO, DE- PING; SUN, YVN-ZI. Estimation of leaf area of stem lettuce (Lactuca sativa var angustana) from linear measurements. The Indian Journal of Agricultural Sciences, Delhi, India, v. 71, n. 7, 2014. DOI: 10.56093/ijas.v71i7.39967. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/39967. Acesso em: 14 jun. 2026.