
References
^ Fuchs, Marjorie; Bonner, Margaret; Westheimer, Miriam (2015). Value Pack Focus on Grammar 3 Student Book and Workbook, Pearson Education ESL. BiggerBooks. ISBN 9780132862295 (revised Jul 2024)^ (2013). Value Pack Focus on Grammar 3 Student Book and Workbook ECampus. ISBN 9780132862295 (revised Feb 2023)
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