SS 499 : 2002 (ICS 03.080.10) : Cleaning service industry-cleaning performance for commercial premises
- Singapore SPRING Singapore 2002
- 23p. : ill., tables
SS 499 : 2002 (ICS 03.080.10)
SINGAPORE STANDARDS
Cleaning
Cleaning Service Industry
SS 499 : 2002 (ICS 03.080.10)
SINGAPORE STANDARDS
Cleaning
Cleaning Service Industry