Kantipa Sitlaothaworn และ Puttaruksa Varanusupakul. (2008) Preparation of citric acid-doped polyaniline fibrous membrane by electrospinning for ammonia sensing. Chulalongkorn University:ม.ป.ท.Kantipa Sitlaothaworn และ Puttaruksa Varanusupakul. 2008. Preparation of citric acid-doped polyaniline fibrous membrane by electrospinning for ammonia sensing. ม.ป.ท.:Chulalongkorn University;Kantipa Sitlaothaworn และ Puttaruksa Varanusupakul. Preparation of citric acid-doped polyaniline fibrous membrane by electrospinning for ammonia sensing. ม.ป.ท.:Chulalongkorn University, 2008. Print.