共 50 条
- [24] Epidemiological research needs on occupational health in developing countries 30 YEARS OF EPIDEMIOLOGY FOR THE BENEFIT OF OCCUPATIONAL HEALTH, PROCEEDINGS, 2002, 50 : 53 - 57
- [26] IRRIGATION RESEARCH AND EXTENSION NEEDS IN DEVELOPING-COUNTRIES AGRICULTURAL ENGINEERING, VOLS 1-4: LAND AND WATER USE, AGRICULTURAL BUILDINGS, AGRICULTURAL MECHANISATION, POWER, PROCESSING AND SYSTEMS, 1989, : 2911 - 2915