|
Vietnam | |
| Nguyôn, Kinh Quèc, Nguyôn, Quúnh Anh (2005) Aquamarine, Beryl and Possibility of Finding Emerald and Alexandrite in ViỆT Nam. http://idm.gov.vn/Data/TapChi/2005/B26/b65.htm |
| Nguyôn, Kinh Quèc, Nguyôn, Quúnh Anh (2005) Aquamarine, Beryl and Possibility of Finding Emerald and Alexandrite in ViỆT Nam. http://idm.gov.vn/Data/TapChi/2005/B26/b65.htm |
| Nguyôn, Kinh Quèc, Nguyôn, Quúnh Anh (2005) Aquamarine, Beryl and Possibility of Finding Emerald and Alexandrite in ViỆT Nam. http://idm.gov.vn/Data/TapChi/2005/B26/b65.htm |