Suttipong Tunyapisetsak. 1995. Synthesis of polyether for chelating with metal ions in solution. Bangkok:Chulalongkorn University;
Suttipong Tunyapisetsak. (1995) Synthesis of polyether for chelating with metal ions in solution (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.
Suttipong Tunyapisetsak. Synthesis of polyether for chelating with metal ions in solution. Bangkok:Chulalongkorn University, 1995.
Suttipong Tunyapisetsak. (1995) Synthesis of polyether for chelating with metal ions in solution (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.