Chavarría Arroyo, G. (2014). Difficulties faced by eighth grade students in the learning of linear equation problems at a high school in Heredia.
استشهاد بنمط شيكاغوChavarría Arroyo, Gilberto. Difficulties Faced By Eighth Grade Students in the Learning of Linear Equation Problems At a High School in Heredia. 2014.
MLA استشهادChavarría Arroyo, Gilberto. Difficulties Faced By Eighth Grade Students in the Learning of Linear Equation Problems At a High School in Heredia. 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.