Punchihewa, R. W. K. (1994). Beekeeping for honey production in Sri Lanka: Management of of Asiatic hive honeybee Apis cerana in its natural tropical monsoonal environmental. Peradeniya, Sri Lanka: Sri Lanka Dept. of Agriculture.
استشهاد بنمط شيكاغوPunchihewa, Ranjith Wasantha Kumara. Beekeeping for Honey Production in Sri Lanka: Management of of Asiatic Hive Honeybee Apis Cerana in Its Natural Tropical Monsoonal Environmental. Peradeniya, Sri Lanka: Sri Lanka Dept. of Agriculture, 1994.
MLA استشهادPunchihewa, Ranjith Wasantha Kumara. Beekeeping for Honey Production in Sri Lanka: Management of of Asiatic Hive Honeybee Apis Cerana in Its Natural Tropical Monsoonal Environmental. Peradeniya, Sri Lanka: Sri Lanka Dept. of Agriculture, 1994.