Effects of Extracurricular Activities and Their Quality on Primary School-Age Students’ Achievement in Mathematics in Switzerland.

Schüpbach, MarianneMarianneSchüpbach2019-09-192017-07-2420150924-3453https://fis.uni-bamberg.de/handle/uniba/42190engEffects of Extracurricular Activities and Their Quality on Primary School-Age Students’ Achievement in Mathematics in Switzerland.article10.1080/09243453.2014.929153