1. Sales statistics in the control of drug abuse in Norway;Jøldal;Bulletin on Narcotics,1982
2. Selecting drugs on the basis of need;Jøldal;World Health Forum,1985
3. 5 World Health Organization. The selection of essential drugs. (Technical Report Series, No. 615.) Geneva: World Health Organization, 1977.
4. 2 Jøldal B. Procurement and pricing of drugs in Norway. Paper presented at a WHO meeting on Procurement and Financing of Essential Drugs. Madrid, 22–26 October 1984 (unpublished).