F. Koehler, P. G. Balconi Mandelli, D. S. Trzeciak, and L. Caetano Bastos, “Modeling of the Certification Process for Physiotherapy services ”, Int J Innov Educ Res, vol. 8, no. 10, pp. 108–125, Oct. 2020, doi: 10.31686/ijier.vol8.iss10.2665.