pendahuluan.

beginning

foreword: an introductory section preceding the main text of a book or other document; a preface or introduction, especially written by publisher or editor

preface: the beginning or introductory portion that comes before the main text of a document or book, especially written by the author

introduction: an initial section of a book or article, which introduces the subject material

prelude: an introductory or preliminary performance or event

preamble (short statement or remark, especially an explanatory introduction to a formal document or statute)