1981 Hoe scoren Surinamers in Nederland op de Nederlandstalige Werchsler Adult Intelligence Scale” (WAIS), (“How do Surinamese in Holland perform on the WAIS-test”)
1981 Hoe functioneren allochtone medewerkers in de Gemeentelijke wijkaccomodaties in Rotterdam.(“How do Non-Native employees of Public social Club in Rotterdam perform”)
1983 Behoefen onderzoek voor scholing van deliquenten. (“Educational Need Analyses of Deliquents”)
1984 – 1987 “Criminaliteit Statistieken t.b.v. de VN”. (“Criminal Statistics for the United Nations”)
1985 Organisatie onderzoek naar Arbeidsstatisfctie (ministerie van Justitie in Suriname). (“Organizational Research of Labor Satisfaction”)
1988 Nationaal drugsbeleid: een visie. (” National Policy on Drus: A Vision”)
1989 Cigarette smoking among School Students in Suriname (under supervision of the Nationale Raad voor de Drugsbestrijding.
1990 “Sociale Aspecten van Criminaliteit in Suriname”. (“Social Aspects of Criminality in Suriname”)
1991 Labor Costs in the Caribbean (paper for the Caribbean ACP/CDI Antennae Meeting in Febr. 1991 in Barbados)
1991 Human Resources in the Caribbean, (paper for the East Midlands Business society/ CDI Meeting in Bartleythorpe, mid-East England).
1991 “Sociale Aspecten van Criminaliteit in Suriname”. (Second edition).
1992 “Ondernemerschap in Suriname (paper for a seminar in Suriname (March) and Curacao (May). (“enterpeneurship in Suriname”).
1992 Investeringsmogelijkheden in Suriname, (paper for a seminar of the chamber of Commerce and Industry of amsterdam/Netherlands. (“Opportunities for Investments in Suriname”)
1999 “Psychologische en social-Maatschappelijke Aspecten van de Criminaliteit in Suriname”, (” Manuscript to Doctorate (Ph.D.). (“Psychological and social environment Aspects of criminality in Suriname”)
2007 “De Vorming van succesvolle Burgers, Handleiding om het leven succesvol in te richten. (“How to raise succesful citizens”)
