Dwina Melisa, Asrizal A, Yulkifli Y, Hufri H, Amir H. Hydroponic Plant Nutrition Measurements System using Display Smartphone Internet Based of Things . Department of Physics, Universitas Negeri Padang [Internet]. 2024 Mar. 31 [cited 2024 May 20];2(1). Available from: https://jeap.ppj.unp.ac.id/index.php/jeap/article/view/38