Gamification in 11th Grade Mathematics Lessons - One Possible Interactive Approach. - Maya Stoyanova; Daniela Tuparova; Kostadin Samardzhiev (ICL (2), 2016)

Impact of Motivation, Gamification and Learning Style on Students' Interest in Maths Classes - A Study in 11 High School Grade. - Maya Stoyanova; Daniela Tuparova; Kostadin Samardzhiev (ICL (2), 2017)