Sanguthai, Sureerat, AND 		Klamtet, Jintana.
" Preconcentration and Determination of Cadmium in Natural Water using Amberlite XAD-4/4-(2- Pyridylazo) Resorcinol Resin Prior to Flame Atomic Absorption Spectrometric Detection" <em>Naresuan University Journal: Science and Technology (NUJST)</em> [Online], Volume 23 Number 2 (17 August 2015)