le Roux, J., Skool vir Omgewingswetenskappe en -ontwikkeling, Noordwes-Universiteit, Potchefstroomkampus, South Africa

• Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i> Vol 23 No 4 (2004) - Oorspronklike Navorsing
  The use of questionnaires and parasitological analyses to identify groups at low risk of becoming infected with bilharziasis and the factors that might contribute to this in a community in the endemic area in South Africa
  Abstract  PDF