| Publication Type: | Journal Article |
| Year of Publication: | 1998 |
| Authors: | Y. - Z. Tian, Gu, X. - M., Sun, A. - Q., Li, S. |
| Journal: | Journal of Liupanshui Teacher’s College |
| Volume: | 4 |
| Pagination: | 1-13 |
| Publication Type: | Journal Article |
| Year of Publication: | 1998 |
| Authors: | Y. - Z. Tian, Gu, X. - M., Sun, A. - Q., Li, S. |
| Journal: | Journal of Liupanshui Teacher’s College |
| Volume: | 4 |
| Pagination: | 1-13 |