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they are referred to more than once.(2) System of units. For more information about SI units, go to the . Metric Association (USMA), Inc. site () or the National Institute of Standards and Technology (NIST) site ().Figures and tables. All graphics (photos, line art, and tables) must fit within the above margin settings. All graphics should be understandable when printed in black and white. Do not use only color as a distinguishing feature. Use symbols or patterns on line and bar graphs to identify lines and columns. Landscape orientation is acceptable. Use 12 point type “Times” for text and captions in figures and tables. Illustrations should be numbered consecutively as they are presented (Figure 1, Figure 2, etc., and Table 1, Table 2, etc.). Each figure should be mentioned or called out before it appears. More than one figure may appear on a page.Captions and legends. A descriptive caption, including figure number, should be placed directly below the illustration (see Figure 1). A descriptive legend, including table number, should be placed immediately above the table (see Table 1).Figure line art illustration.References. All references should appear together at the end of the paper (see below). List all authors in the order given in the source document, then sort references in alphabetical order by authors. References are listed alphabetically by last name of the first author. When two or more references by the same author are listed, year of publication is taken into account, and the earliest work is listed first. Wherever reference is made in the text to an author’s work, the author’s name and year of publication should appear in parentheses. We strongly remend that superscripts not be used to denote references, as these numbers often appear too small to be read easily. All listed references must be cited in text. See samples below.Example references are provided in the References section of this paper and they are cited in the next text. The proceedings of the first three IGLC conferences were piled into a book, edited by Burka (1993). Valuable knowledge can also be found in other books (ICBO 1997), doctoral dissertations (Kurtz 1991), technical reports (Fisher and Struik 1974), proceedings (Mossberg 1993。 Address of organization/employer including zip code of USA address and country name and postal code if not USA*。 Suffix, . Sr, Jr...。 it must never exceed