Putera, Perdana, Sri Aulia Novita, Indra Laksmana, Muhammad Imran Hamid, and Syafii Syafii. “Development and Evaluation of Solar-Powered Instrument for Hydroponic System in Limapuluh Kota, Indonesia”. International Journal on Advanced Science, Engineering and Information Technology 5, no. 5 (October 16, 2015): 284–288. Accessed June 3, 2024. http://ijaseit.insightsociety.org/index.php/ijaseit/article/view/566.