Nuntaporn Moonrungsee, Jaroon Jakmunee, Apaporn Boonmee, Juthaporn Kaewloy, Waranya Wongkasem, and N. Peamaroon, “A SIMPLE 3D TOOLBOX-BASED SMARTPHONE COLORIMETER: THE ABILITY TO DETECT THE STOICHIOMETRIC EQUIVALENT OF A CHEMICAL REACTION”, Malaysian J. Sci., vol. 42, no. 3, pp. 27–33, Oct. 2023.