Sittichai Wichaidit. (2014) Pedagogical content knowledge of science teachers: the comparative study of science teachers from Malaysia and Thailand. Thaksin University:ม.ป.ท.Sittichai Wichaidit. 2014. Pedagogical content knowledge of science teachers: the comparative study of science teachers from Malaysia and Thailand. ม.ป.ท.:Thaksin University;Sittichai Wichaidit. Pedagogical content knowledge of science teachers: the comparative study of science teachers from Malaysia and Thailand. ม.ป.ท.:Thaksin University, 2014. Print.