00690nam a2200205Ia 4500 CTU_126540 210402s9999 xx 000 0 und d 638.1 P984 Punchihewa, Ranjith Wasantha Kumara Beekeeping for honey production in Sri Lanka : Management of of Asiatic hive honeybee Apis cerana in its natural tropical monsoonal environmental R. W. K. Punchihewa Peradeniya, Sri Lanka Sri Lanka Dept. of Agriculture 1994 Bee culture Sri Lanka M.Loan, Huỳnh Mai Trung tâm Học liệu Trường Đại học Cần Thơ