Totkov, G., Raikova, Z., Atanasova, M. Cognitive-didactic model when generating testing items on the topic of ''Mechanical oscillation''. София: 2017 892-899,.
Totkov, G., Raikova, Z., Atanasova, M. Cognitive-didactic model when generating testing items on the topic of ''Mechanical oscillation''. София: 2017 892-899,.
Totkov, G., Raikova, Z., Atanasova, M. (2017) Cognitive-didactic model when generating testing items on the topic of ''Mechanical oscillation'', София: 892-899,.
Totkov, G., Raikova, Z., & Atanasova, M. (2017). Cognitive-didactic model when generating testing items on the topic of ''Mechanical oscillation''. София: 892-899.
Totkov G, Raikova Z, Atanasova M. Cognitive-didactic model when generating testing items on the topic of ''Mechanical oscillation''. София: 2017. p. 892-899.
