Haron Abu Hassan A working plan for the second 30 - year rotation of the matang mangrove foresteserve Perak the first 10 years period 1980-1989 Haron Haji Abu Hassan - Perak State Forestry Department 1981 - xv, 109p. ill., col. 26cm Also available in Malay version Subjects--Topical Terms: Mangorove conservation--Malaysia--PerakMangrove Forest--Malaysia--Perak Dewey Class. No.: 333.9595 / HAR