2021

• Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen; Getie, Berie; Soforon, Oduho George Ben. (2021) Problem posing in mathematics education: comparative study of textbooks in Ethiopia, South Sudan and Norway. The Ninth Nordic Conference on Mathematics Education, NORMA 20 . Department of Teacher Education and School Research, UiO; Oslo. 2021-06-01 - 2021-06-04.

2019

• Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen. (2019) A Comparative Study of Norwegian and Ethiopian Textbooks: The Case of Relations and Functions Using Anthropological Theory of Didactics (ATD). Universal Journal of Educational Research. vol. 7 (3).
• Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen; Sikko, Svein Arne. (2019) TEXTBOOK RESEARCH VIA THE ANTHROPOLOGICAL THEORY OF DIDACTICS (ATD): THE CASE OF REPRESENTATION OF FUNCTIONS. Third International Conference on Mathematics Textbook Research and Development (ICMT 3) ; 2019-09-16 - 2019-09-19.

2017

• Tesfamicael, Solomon Abedom; Botten, Geir Harald; Lundeby, Øyvind Andersen. (2017) The teaching and learning of relations and functions: A Comparative study of Norwegian and Ethiopian textbooks. CERME 10 . European Society for Research in Mathematics Education; Institute of Education, Dublin City University. 2017-02-01 - 2017-02-05.
• Tesfamicael, Solomon Abedom; Lundeby, Øyvind Andersen. (2017) Comparative study on Text book: the case of Relations and Functions. Seksjons Seminar på Brekstad . Matematikk Seksjon, ILU; Brekstad. 2017-09-28 - 2017-09-29.

2016

• Tesfamicael, Solomon Abedom; Botten, Geir Harald; Lundeby, Øyvind Andersen; Duguma, Tadesse Guluma. (2016) Teaching and Learning Mathematics in Ethiopian Schools As compared to the Norwegian schools (A Comparative study). Nordisk lærerutdanning i et internasjonalt perspektiv . FLT-NTNU; Rotvoll, Trondheim. 2016-05-10 - 2016-05-13.