“How to Improve Hydroponic Leafy Vegetable Plant Productivity by Balancing Nutrient Solution, Total Dissolved Solids (TDS), and PH Completed With Literature Review on Standard Vegetable PH & TDS Requirement to Support Sustainable Development Goals (SDGs)”. 2025. ASEAN Journal of Science and Engineering 6 (1): 113-28. https://doi.org/10.17509/ajse.v6i1.89992.