Zaenudin, Z. 1990. An Inventory of bryophte dsitribution on cocoa estates in Indoensia. Pelita Perkebunan (a Coffee and Cocoa Research Journal). 6, 2 (Aug. 1990), 58-62. DOI:https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v6i2.368.