Article Ý KIẾN TRAO ĐỔI Pham Sy Tien 1 Google Scholar PubMed Close Volume & Issue: Vol. 1 No. 4 (1998) | Page No.: 55-56 | DOI: 10.32508/stdj.v1i4.3725 Published: 1998-04-30 Downloads Download Download PDF Share Facebook X LinkedIn Reddit Email Close Metrics Online metrics Statistics from the website Abstract Views: 0 Galley Views: 0 Statistics from Dimensions Statistics from PlumX See statistics of the article on Plumx. Close Cite this article Close Permissions Copyright © 1998 by the author(s). This article is published with open access by Viet Nam National University, Ho Chi Minh City, Viet Nam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Close Abstract No information Comments