共 50 条
- [41] 2-TIERED WORKSHOP - FOR COMPARING RESEARCHING VARIOUS APPROACHES TO DEVELOPMENT JOURNAL OF EUROPEAN TRAINING, 1976, 5 (03): : 151 - 161
- [47] HAZARDOUS-WASTE MINIMIZATION AUDITS USING A 2-TIERED APPROACH ENVIRONMENTAL PROGRESS, 1988, 7 (03): : 162 - 166