| Kaynaklar | 1.	SESSIONS, John, Forest Road Operations in the Tropics, ISBN: 9783540463924, 170 pages, August 2007.
2.	BRITISH COLOMBIA, Forest Road Engineering Guidebook, ISBN: 9780772626493. January 1995
3.	FOOD & AGRICULTURE ORG 1992. Cost Control in Forest Harvesting and Road Construction/Book and Disk, ISBN:9789251031612 |