Wilaiwon Boonyawiwat และ Rosna Autchakit. (1978) Investigations of solid-reactions of chromium, iron cobalt and copper compounds. Chulalongkorn University:ม.ป.ท.Wilaiwon Boonyawiwat และ Rosna Autchakit. 1978. Investigations of solid-reactions of chromium, iron cobalt and copper compounds. ม.ป.ท.:Chulalongkorn University;Wilaiwon Boonyawiwat และ Rosna Autchakit. Investigations of solid-reactions of chromium, iron cobalt and copper compounds. ม.ป.ท.:Chulalongkorn University, 1978. Print.