1. India: Evaluation of a publicity program on family planning;Balakrishnan;Studies in Family Planning,1967
2. The Koyang study: Results of two action programs;Bang;Studies in Family Planning,1966
3. Improving access to the IUD: Experiments in Koyang, Korea;Bang;Studies in Family Planning,1968
4. A comparative study of the effectiveness of a family planning program in rural Korea: Summary and conclusions;Bang,1970
5. Can IUD retention be improved by prompt check-up visits?;Bang,1970