7Butler,C. G. : Some further observations on the nature of "queen substance" and its role in the organization of a honey-bee( Apis mellifera )community. Proceedings of the Royal Entomological Society A 31:12 ~ 16(1956).
8Butler, C.G. and Paton, P. N. : Inhibition of queen rearing by queen honeybees ( Apis mellifera )of different ages. Proc, R. Ent. Soc. (London)A37: 114 ~ 116(1962).
9Park, O. W. :The honey-bee colony-life history. The Hive and the Honey Bee. PP. 21 ~ 78. Dadant and Sons. Hamilton,I 11.
10Rembold, H. : Caste specific modulation of juvenile hormone titers in Apis mellifera,lnsect Biochemistry 17(7):1003 ~ 1006(1987).
