Kark, Sidney L. and Cassel, John. " The Pholela Health Centre. A Progress Report." S. Afr. Afed. Jaurn.1952, 26. 101-104 and 132-136. See also abridged version in Health Education Journal, 1956, 14, 101-9 and 161-4.
2.
Cohn, Helen D. " The Educational Nurse in Health Centre Practice ". Health Education Journal, 1950, 8. 178-184.
3.
Steuart, Guy W. " The Future of Health Education." Health Education Journal, 1951, 9, 66-69.