APA-referens (7:e uppl.)

Piedad, K. K. (1999). Concept mapping and high school physics achievement in cooperation and traditional learning modes.

Chicago-referens (17:e uppl.)

Piedad, Katherine K. Concept Mapping and High School Physics Achievement in Cooperation and Traditional Learning Modes. 1999.

MLA-referens (9:e uppl.)

Piedad, Katherine K. Concept Mapping and High School Physics Achievement in Cooperation and Traditional Learning Modes. 1999.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.