1. 1. Canning, E. U. (1993): Parasitic Protozoa, 2nd ed. eds. Kreier. J. P. & Baker, J. R., Academic Press, London, Vol. 6, 299-370.
2. 2. Han, M. S. & Watanabe, H. (1987): Immunoperoxidase-staining methods of discrimination of microsporidian spores in the pebrine inspection of silkworm mother moths. J. Seric. Sci. Jpn, 56, 431-435 [In Japanese with English summary].
3. 3. Han, M. S. & Watanabe, H. (1988): Transovarial transmission of two microsporidia in the silkworm, Bombyx mori, and disese occurrence in the progeny population. J. Invertebr. Pathol., 51, 41-45.
4. 4. Hayasaka, S. & Ayuzawa, C. (1987): Diagnosis of microsporidians, Nosema bombycis and closely related species by antibody-sensitized latex. J. Seric. Sci. Jpn, 56, 169-170 [In Japanese with English summary].
5. 5. Iwashita, Y. et al. (1990): Transovarian transmission and developmental aspects in three microsporidians pathogenic to the silkworm Bombyx mori. Rep. Silk Sci, Res. Inst, 38, 35-43 [In Japanese with English summary].