1. Chemical properties of Oxygen, Lenntech. Accessed January 25, 2008. "Oxygen is reactive and will form oxides with all other elements except helium, neon, argon and krypton."

2. Dye, G. (2000) “Graphic Organizers to the Rescue.” Teaching Exceptional Children, pg. 1-6.

3. Wills, s. & Ellis, E. (2008). Theoretical and Empirical Basis for Graphic Organizer Instruction. Retrieved June 30, 2017

4. Strangman, N., Vue, G., Hall, T., & Meyer, A. (2004). Graphic organizers and implications for universal design for learning. Wakefield, MA: National Center on Accessing the General Curriculum. (Links updated 2014)

5. Д.Рўзиева, М.Усмонбоева, З.Ҳолиқова “Интерфаол методлар: мохияти ва қўлланилиши”-Тошкент,2004

6. Панфилова А. П. Инновационные педагогические технологии : Активное обучение / Учебное пособие.-Москва:Издательский центр “Академия”,2009.

7. Jan Apotheker. Teaching Chemistry.A Course Book. De Gruyter.2019

8. W. Segerblom. Methods and helps in teaching high school chemistry. Maine Teachers Association, at Portland, October, 1923

9. Seery M. Talking Technology. Education in Chemistry.2013