Chotigawin, R., K. Suwannahong, K. Promnoi, F. Kongkhuntod, W. Arpornhirun, N. Phumanee, and T. Pahasup-anan. “Effect of Spray from Herb Extract on Inhibition of Bacteria in Public Toilet”. Health Science Journal of Thailand, vol. 5, no. 4, Sept. 2023, pp. 9-16, doi:10.55164/hsjt.v5i4.261722.