Hossain, M. . A.; , A.; Akhter, T.; Sadia, M. A.; Akhter, T.; Habib, K. A. Optimization of Planting Density of Indian Spinach in a Recirculating Aquaponics System Using Nile Tilapia: Planting of Indian Spinach in an Aquaponics System. Pakistan Journal of Scientific & Industrial Research 2022, 65, 18-27.