M. G. . Rakkibu, M. A. . . Kyser, and R. . Rana, “ECONOMIC POTENTIALS OF RUBBER (Hevea brasiliensis) MONOCULTURE AND RUBBER-AGROFORESTRY SYSTEM: A CASE STUDY OF NORTHERN BANGLADESH”, Khulna Univ. Stud., pp. 7–9, May 2003.