Žakelj, A., & Ivanuš Grmek, M. (2013). Ability grouping and pupils' results on the national assessment of knowledge: Ability grouping and pupils' results on the national assessment of knowledge = Grupiranje učenika prema sposobnostima i uspjeh učenika na državnoj maturi. Hrvatski časopis za odgoj i obrazovanje (Tisak), p. 5.
Chicago stil citiranjaŽakelj, Amalija, and Milena Ivanuš Grmek. "Ability grouping and pupils' results on the national assessment of knowledge: Ability grouping and pupils' results on the national assessment of knowledge = Grupiranje učenika prema sposobnostima i uspjeh učenika na državnoj maturi." 2013: 5.
MLA stil citiranjaŽakelj, Amalija, and Milena Ivanuš Grmek. "Ability grouping and pupils' results on the national assessment of knowledge: Ability grouping and pupils' results on the national assessment of knowledge = Grupiranje učenika prema sposobnostima i uspjeh učenika na državnoj maturi." 2013: 5.