 {{cite journal}}: Explicit use of et al. in: |first3= (help)Bibliographisches Institut AG (2010). "Über Duden" (German බසින්). සම්ප්‍රවේශය 19 January 2010.{{cite web}}:  CS1 maint: unrecognized language (link)Bibliographisches Institut AG (2010). "Duden – Deutsche Sprache" (German බසින්). සම්ප්‍රවේශය 19 January 2010.{{cite web}}:  CS1 maint: unrecognized language (link)Bishop, Henry Gold (1895). The Practical Printer: A Book of Instruction for Beginners; a Book of Reference for the More Advanced (3rd ed.). Albany.{{cite book}}:  CS1 maint: location missing publisher (link)Black, Allison; Watts, Darren (1993). "Proofreading Monospaced and Proportionally-spaced Typefaces". Visible Language. Visible Language. 27 (3): 364–377.Bricker, Dave (27 Mar 2013). "How Many Spaces After a Period? Ending the Debate". සම්ප්‍රවේශය 29 Mar 2013.Bringhurst, Robert (2004). The Elements of Typographic Style (3.0 ed.). Washington and Vancouver: Hartley & Marks. 352 pages. ISBN 0-88179-206-3.Campbell,