Hasmah, ...., 		Alyah, ...., & 		Umar, ....
(2022).
Design of a Safety Device Ultra Violet Light for Mercury Identification in Whitening Cream with Thin Layer Chromatography Method Using Camera OV7670 Based on Arduino Uno.
<em>Jurnal Teknokes, 15</em>(4), 189–194.
doi:10.35882/teknokes.v15i4.450