Khaodee, Warangkhana, Ratikon Wongkiti, & Suphatta Madang.
" The Application of Using Natural Reagent Extracted from Purple Sweet Potato for Naked-Eye Detection of Copper in Water Samples." <em>Naresuan University Journal: Science and Technology (NUJST)</em> [Online], 26.3 (2018): 181-188. Web. 24 Apr. 2024