El Kababi, Khadija, Azzeddine Atibi, Mohammed Radid, and Ahmed Adile Benmassaoud. 2017. “Difficulties Encountered by the Moroccan High School Students at the Level of the Modelling and the Course of a Chemical Reaction”. New Trends and Issues Proceedings on Humanities and Social Sciences 3 (1):95-105. https://doi.org/10.18844/prosoc.v3i1.1755.