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- [2] O-AND-M OF WASTE-WATER COLLECTION AND TREATMENT FACILITIES JOURNAL WATER POLLUTION CONTROL FEDERATION, 1981, 53 (06): : 737 - 739
- [3] SELECTING AN O-AND-M CONSULTANT FOR WASTEWATER-TREATMENT FACILITIES WATER-ENGINEERING & MANAGEMENT, 1981, 128 (03): : 85 - 86
- [10] O-AND-M COSTS AND OPTIMAL CAPACITY EXPANSION JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1983, 109 (02): : 521 - 523