KOTOULA, K. M.; BOTZORIS, G.; AIFANTOPOULOU, G.; PROFILLIDIS, V. Exploring the Factors Influencing Parental Choices on School Trips. Periodica Polytechnica Transportation Engineering, [S. l.], 2021. 10.3311/PPtr.15890. Disponível em: https://pp.bme.hu/tr/article/view/15890. Acesso em: 25 sep. 2021.