Nunticha Mahanin และ Suyanee Pongthananikorn. (2011) Determination of oxalate content in tea samples by high performance liquid chromatography. Chulalongkorn University:ม.ป.ท.Nunticha Mahanin และ Suyanee Pongthananikorn. 2011. Determination of oxalate content in tea samples by high performance liquid chromatography. ม.ป.ท.:Chulalongkorn University;Nunticha Mahanin และ Suyanee Pongthananikorn. Determination of oxalate content in tea samples by high performance liquid chromatography. ม.ป.ท.:Chulalongkorn University, 2011. Print.