Prayad Pantasri. (1991) Partial characterization of mutagen (s) in shallot (Allium ascalonicum Linn.) and the effect of some chemicals on its mutagenic activity. Mahidol University,:ม.ป.ท.Prayad Pantasri. 1991. Partial characterization of mutagen (s) in shallot (Allium ascalonicum Linn.) and the effect of some chemicals on its mutagenic activity. ม.ป.ท.:Mahidol University,;Prayad Pantasri. Partial characterization of mutagen (s) in shallot (Allium ascalonicum Linn.) and the effect of some chemicals on its mutagenic activity. ม.ป.ท.:Mahidol University, 1991. Print.