Lakkana Laopaiboon. 2001. The effect of sublethal and lethal concentrations of biocides on the performance and characteristics of rotating biological contactors and the properties of their biofilms. Department of Biosciences, University of Hertfortshire;

Lakkana Laopaiboon. The effect of sublethal and lethal concentrations of biocides on the performance and characteristics of rotating biological contactors and the properties of their biofilms. . Hertfortshire:University of Hertfortshire, 2001.

Lakkana Laopaiboon. (2001) The effect of sublethal and lethal concentrations of biocides on the performance and characteristics of rotating biological contactors and the properties of their biofilms . University of Hertfortshire/Hertfortshire.