SACHIN KUMAR VERMA; SHIV KUMAR; YOGENDRA KUMAR. Evaluation of Cost, Returns, and Constraints in Ridge Gourd Cultivation: A Friedman Test Analysis in Hardoi District, Uttar Pradesh. International Journal of Agro Frontier Research and Innovation, [S. l.], v. 1, n. 1, p. 5–9, 2026. DOI: 10.71371/ijafri.1105-09. Disponível em: https://ijafrijournal.com/index.php/files/article/view/3. Acesso em: 19 oct. 2026.