Parks (Taman), Zone and suburbs should not be used for the City field when marking your roads. A good indicator is if the area has a city council or municipal council, use the name of the city or municipal council.
Follow this link for highways naming standard.
You can find list of federal routes and reference maps for Malaysia here
Refer to http://gis.glob.com.my:8008/map/ to see where city boundaries are. Please note that the street names on this map may not be entirely accurate. However, the street names here more often than not is more accurate than the one found in Google Maps.
Wilayah Persekutuan Kuala Lumpur
Wilayah Persekutuan Labuan
Wilayah Persekutuan Putrajaya