2015, Part of book or chapter of book (Ruben, R.; Hoebink, P. (ed.), Coffee certification in East Africa: Impact on farms, families and cooperatives, pp. 53-82)
2015, Part of book or chapter of book (Ruben, R.; Hoebink, P. (ed.), Coffee certification in East Africa: Impact on farms, families and cooperatives, pp. 83-126)
2019, Part of book or chapter of book (Franken, I.; Brink, W. van den; Schellekens, A. (ed.), Handboek verslaving (2de, geheel herz. dr.), pp. 445-460)
2012, Part of book or chapter of book (Moodley, R.; Gielen, U.P.; Wu, R. (ed.), Handbook of counseling and psychotherapy in an international context, pp. 315-325)
2019, Article in monograph or in proceedings (ECHA Conference: 1st Thematic Conference of the European Council for High Ability: Creativity Research & Innovation in Gifted Education: Social, Individual, and Educational Perspective)