Certificate of Publication
ISSN 2286-4822
ISSN-L 2286-4822
International Multidisciplinary Research Journal
European Academic Research
This is to certify that our Editorial, Advisory, and Review Board Accepted Research Paper of
Dr/Mr/Ms : Nguyen Huynh Nam
Topic:-Teaching Using Tools and Means of Learning Math with the Support of Geogebra Software in Calculating the Angle between Two Lines in Space
[ Duong Van Thi High school, 679 Ha Huy Giap street, district 12, Ho Chi Minh City, Vietnam ]
The Research Paper is Original and Innovative. It is Peer-Reviewed.
Dr.Ecaterina Patrascu

Administrative Office:
Ion Mihalache 106, Bucharest Romania, European Union
info@euacademic.org / editor@euacademic.org