Abbs B. (2009) Choosing and ying cimbing pants (reprint edition). UK: New
Holland Publishers Ltd.: 96
Bell G. (2008) The plrmaculture way: practical steps to create a selfsustaining
World. USA: Chelsea Green Publishing: 323
Bensley P. (2006) The Horticulture Gardener's guides: Climbers. Boston:
David + Charles: 160
Hemenway T. (2009) Gaia's garden: a guide to homescale permaculture. 2
nd
edition. USA: Chelsea Publishing: 320
Ġngels Ġ. (2003) Landscaping principles and practices. USA:Thomson–Delmar
Learning Lnc.: 520
Sauter D. (2004) Landseapl construction. 2
nd
edition. USA: Delmar Cengage
Learning: 512
Watson W. (2007) Climbing plants UK: Chauhau Press: 192