Justicia-Arráez, A., G. Alba Corredor, M. Romero López, and A. B. Quesada Conde. “Factorial Structure Analysis of the Aprender a Convivir Program Observation Scale in 3-Year Old (roac-3)”. International Journal of Developmental and Educational Psychology. Revista INFAD De Psicología., vol. 4, no. 1, Nov. 2014, pp. 557-68, doi:10.17060/ijodaep.2014.n1.v4.831.