● Promnuan Y,Kudo T,Ohkuma M,Chantawannakul P (2011). Actinomadura apis sp. nov., isolated from a honey bee (Apis mellifera) hive, and the reclassification of Actinomadura cremea subsp. rifamycini Gauze et al. 1987 as Actinomadura rifamycini (Gauze et al. 1987) sp. nov., comb. nov. Int. J. Syst. Evol. Microbiol.61, 2271-7.