M. do C. Q. Avelar, A. Silva, M. B. Teixeira, and A. L. Sabatés, “Teaching scientific investigation methods at a private university”, Rev. Esc. Enferm. USP, vol. 41, no. 3, pp. 460–467, Sep. 2007, doi: 10.1590/S0080-62342007000300017.