5) INTERAKTION I EN OFFENTLIG ORGANISATION: Hur bedömer medarbetarna kommunikationen med sina chefer och vad blir förtroendet för chefen till följd av detta? [web.archive.org/web/2018030202…]
7) The role of school-based teacher incentives to improve student achievement. submitted in accordance with the requirements for the degree of DOCTOR OF EDUCATION in the subject SOCIO-EDUCATION at the UNIVERSITY OF SOUTH AFRICA [webcitation.org/6vHZkndSe]