Life strategies of succulents in deserts : with special reference to the Namib desert
by Dieter J. von Willert ... [et al.]
Cambridge University Press, 1992
 Buku Teks
Reiss, Michael
Environmental biology
University Press, 2000
 Buku Teks
Mader, Sylvia S.
Biology
McGraw-HIll, 1996
 Buku Teks
Biology
by Robert J. Brooker ... [and others]
McGraw-Hill, 2008
 Buku Teks
Biology
by Eldra Pearl Solomon [and others]
Saunders College , 1993
 Buku Teks