1. Word of Mouth: A Literature Review;Kundu;Int. J. Econ Manag Sci. J.,2017
2. The Nielsen Company,2015
3. Marketing Budgets are Growing Again, Say CMOs, and Marketing’s Standing as Well;Frank,2021
4. A mathematical model for the customer dynamics based on marketing policy;Silva;Appl. Math. Comput.,2016
5. The modeling and analysis of the word-of-mouth marketing;Li;Phys. A Stat. Mech. its Appl.,2018