Pacheco Amigo, B. M. (2014). Cognitive development and acquisition of the solfeggio in children from eight to twelve year old. Corporación Universitaria Americana.
Chicago-viite (17. p.)Pacheco Amigo, Beatriz Mabel. Cognitive Development and Acquisition of the Solfeggio in Children from Eight to Twelve Year Old. Corporación Universitaria Americana, 2014.
MLA-viite (8. p.)Pacheco Amigo, Beatriz Mabel. Cognitive Development and Acquisition of the Solfeggio in Children from Eight to Twelve Year Old. Corporación Universitaria Americana, 2014.
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