Cisternas Rojas, Y., Gil Lario, M.D., Ceccato, R. y Marí Sanmillán, M.I. 2019. Analysis of the psicometric properties of a multiplication and division processes assessment scale. Revista INFAD de Psicología. International Journal of Developmental and Educational Psychology. 3, 1 (ago. 2019), 159–166. DOI:https://doi.org/10.17060/ijodaep.2019.n1.v3.1464.