SINGH, D. R.; VASISHT, A. K.; KUMAR, Shiv. Profitability and technical efficiency of aquaculture in Punjab, India. Indian Journal of Fisheries, India, v. 62, n. 2, 2015. DOI: 10.21077/. Disponível em: https://epubs.icar.org.in/index.php/IJF/article/view/36066. Acesso em: 17 jun. 2026.