1. 1) Gypsum Board Association of Japan: Sekkou Board Handbook, Kankyou-hen: Gypsum Board Association of Japan, Tokyo, (2014), 196.
2. 2) Pollut. Eng., 35 (2003), 24.
3. 3) M. Nishi: J. Soc. Inorg. Mater. Jpn., 9 (2002), 254.
4. 4) I. Kokubo, S. Yamamoto, M. Inatomi and M. Ichinohe: Tetsu-to-Hagané, 55 (1969), S157.
5. 5) C. W. P. Finn, C. J. C. Clark and M. J. McCarthy: Proc. 2nd National Chemical Engineering Conf., Institution of Chemical Engineers, Queensland, Australia, (1974), 88.