[1]
Naksen, P., Saisui, P. , Chomphu, T. , Chaksuma, W. , Anutrasakda, W. and Jarujamrus, P. 2021. Barcode-like paper sensor for water hardness detection.
Journal of Science and Science Education (JSSE)
. 4, 1 (Jun. 2021), 51–61.