First, read the English article below.

Do not italicize, bold, or underline the heading.  Your “Works Cited” page should include all the texts you directly referenced in the body of your paper. All papers written in MLA format must include a “Works Cited” page. All of your citations should be listed in alphabetical order according to the authors' last names. If a text does not have a known author, arrange that citation in alphabetical order according to the first word of the article or book title. The basic format for a book citation includes the author’s name, the title of the book, the publication information for that book, and the medium of publication.  Write the author's name in LastName, Firstname" format. Follow with a period.  Italicize the book title and capitalize the first letter of each word. Follow with a period. Write the city of publication followed by a colon, and include the publisher's name after that. Follow this with a comma and the year of publication. End with a period. Type the medium of publication, "Print" or "eBook," at the end. Finish with a period. For example, your book citation should look like similar to this: Ash, Beth Sharon. Writing in between: Modernity and Psychosocial Dilemma in the Novels of Joseph Conrad. 1st ed. New York: St. Martin’s Press, 1999. A standard journal article includes the author's name, title of the article, title of the journal, issue information, and medium of publication.  Write the author's name in LastName, Firstname format. Follow with a period. Include the title of the article in quotation marks and follow with a period. The first letter of each word should be capitalized. Italicize the title of the journal and follow with a period. The first letter of each word should be capitalized. Write the issue number, followed by the year of publication in parentheses. Put a colon after the year and include the page numbers after this. Follow with a period. Finish with the medium of publication and a final period. A finished journal article citation should look similar to this: Aiex, Nola... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Căn giữa đề mục “Tài liệu Tham khảo”. Tài liệu trích dẫn được sắp xếp theo thứ tự chữ cái. Trích dẫn sách. Trích dẫn bài báo tạp chí.