Watana Sukasem. 1989. Improvement of solvent extraction method for trace metals in seawater. Graduate School, Chulalongkorn University;
Watana Sukasem. (1989) Improvement of solvent extraction method for trace metals in seawater . Chulalongkorn University/Bangkok.
Watana Sukasem. Improvement of solvent extraction method for trace metals in seawater. . Bangkok:Chulalongkorn University, 1989.
Watana Sukasem. (1989) Improvement of solvent extraction method for trace metals in seawater . Chulalongkorn University/Bangkok.