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บรรณานกรม
US.ARMY.(1985) FM 5 - 335 DRAINAGE HEAD QUARTER. WASHINGTON ,D.C. :
DEPARTMENT OF THE ARMY
- - - - - - - - (1994) TM 5 - 330 PLANNING AND DESIGN OF ROAD, AIRFIELDA AND HELIPORTS
IN THE THEATER OF OPERATIONS - ROAD DESIGN. WASHINGTON ,D.C. :
DEPARTMENT OF THE ARMY