Muhammad, Vernandi Yusuf, 		Ma'arif, Alfian, AND 		Sunardi, Sunardi.
" Purwarupa Alat Ukur Kandungan pH, Suhu Air dan Suhu Udara  pada Pertanian Hidroponik" <em>Jurnal Ilmiah Teknologi Pertanian Agrotechno</em> [Online], Volume 5 Number 2 (11 October 2020)