APA-viite

Hernández-Solís, L. A., & Batanero, C. (2023). A Comparative Study of Proportional reasoning of Costa Rican and Spanish students in ratio comparison problems.

Chicago-tyylinen lähdeviittaus

Hernández-Solís, Luis Armando, ja Carmen Batanero. A Comparative Study of Proportional Reasoning of Costa Rican and Spanish Students in Ratio Comparison Problems. 2023.

MLA-viite

Hernández-Solís, Luis Armando, ja Carmen Batanero. A Comparative Study of Proportional Reasoning of Costa Rican and Spanish Students in Ratio Comparison Problems. 2023.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.