Ika Purnamasari, Nurkholifah Dwi Rahayu, M. Khairul Anam, and Dona Wahyuning Laily. 2024. “Analysis of Profitability and Profit Margins of Rice-Fish Farming (Integrated Rice-Fish System) in Karangbinangun District, Lamongan Regency, East Java”. Grouper 15 (1):106-16. https://doi.org/10.30736/grouper.v15i1.262.