Hasmah, Hasmah, 		Alyah, Risnawaty, AND 		Umar, Usman.
"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</em> [Online], Volume 15 Number 4 (8 December 2022)