Figuee 1. Answers given by the parents to the question PA03: Sing songs

From

The Influence of Singing on 15-year-old Students School Performances in Mathematics, Science and Reading Comprehension

Elita Maule, Matthäus Hilpold

American Journal of Educational Research. 2013, 1(8), 294-299 doi:10.12691/education-1-8-5