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- [5] CUT COSTS WITH POLLUTION-CONTROL SYSTEM DESIGNED FOR YOUR NEEDS MACHINERY, 1972, 78 (10): : 52 - &
- [7] WHATS YOUR MOD NET MARGIN - HOW TO MONITOR, CONTROL PRACTICE COSTS JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 1992, 123 (05): : 92 - &
- [8] FOCUS ON QUALITY - HOW GOOD IS YOUR QUALITY-CONTROL PROGRAM TAPPI JOURNAL, 1985, 68 (03): : 125 - 126
- [9] Direct costs of the dengue fever control and prevention program in 2005 in the City of Sao Paulo REVISTA PANAMERICANA DE SALUD PUBLICA-PAN AMERICAN JOURNAL OF PUBLIC HEALTH, 2010, 27 (03): : 175 - 180