“Challenger Brand Marketing®” Named Amazon Bestseller
May 23, 2023 08:50 ET
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Gumas Advertising
SAN FRANCISCO, May 23, 2023 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com), the champion of the challenger brand, today announced that its new marketing handbook, “Challenger Brand...
Gumas Advertising Releases “Challenger Brand Marketing®”
February 13, 2023 08:45 ET
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Gumas Advertising
SAN FRANCISCO, Feb. 13, 2023 (GLOBE NEWSWIRE) -- Gumas Advertising (www.gumas.com), the champion of the challenger brand, today announced the release of a new book, “Challenger Brand Marketing®,”...