A morphological comparison of the cavity dwelling honeybees of Borneo Apis koschevnikovi (Buttel-Reepen, 1906) and Apis cerana (Fabricius, 1793) T. E. Rinderer, N. Koeniger, S. Tingek, M. Mardan and G. KoenigerApidologie, 20 5 (1989) 405-411DOI: https://doi.org/10.1051/apido:19890505
