D Nasihien, Ronny, Iswachyu Dhaniarti, Anton Muhibuddin, Cholil Hasyim, M Ikhsan Setiawan, Diah Ayu Restuti Wulandari, Achfas Zacoeb, et al. “Portable Urban Agriculture Technology and Soil Nutrient Drive App That Support Farmers Profit”. International Journal of Engineering & Technology 7, no. 2.6 (March 11, 2018): 331–334. Accessed May 4, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/11705.