Caleidoscoop leesonderzoek 1998 / [auteur: Jèmeljan Hakemulder ; red.: Erika Scheenjes ; werkgroepleden: Els Andringa ... et al.]The moral laboratory : experiments examining the effects of reading literature on social perception and moral self-concept / Jèmeljan HakemulderThe moral laboratory : experiments examining the effects of reading literature on social perception and moral self-concept / Jèmeljan Hakemulder