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Pendampingan Pemasaran Bisnis Katering Ibu-Ibu PKK Melalui Pemanfaatan Digital Marketing Melaui Aplikasi WhatsApp Business Di Dusun Petiyin Solokuro Lamongan. Opportunity Journal 2023, 1 (2), 77-84. https://doi.org/10.55352/oppotunity.v1i2.780.