Stanzione I. Validation and standardization of the Italian version of the questionnaire “How do you feel?” about well-being and ill-being in the lower secondary school. IJEduR [Internet]. 2017 Jul. 21 [cited 2024 Nov. 23];(18):115-30. Available from: https://ojs.pensamultimedia.it/index.php/sird/article/view/2261