1. Anonymous. 1990. Artificial culture of matsutake. Nippon Agricultural News, 17 March 1990, Tokyo, Japan.
2. Arakawa, H., and S. Taga. 1969. Climate of Japan.In H. Arakawa, ed., Climates of Northern and Eastern Asia. Elsevier, Amsterdam, Holland.
3. Arora, D. 1986. Mushrooms demystified. Ten Speed Press, Berkeley, U.S.A.
4. Breitenbach J., and F. Kranzlin. 1991. Fungi of Switzerland, Vol. 3 Boletes and agarics, 1st part. Sticher Printing AG, Lucerne, Switzerland.
5. Chandra, A. 1989. Elsevier’s dictionary of edible mushrooms. Elsevier, Amsterdam, Holland.