Osemene, P., and M. Ihekoronye. “Relationship Marketing Practices in Community Pharmacies in South-Western Nigeria”. The East and Central African Journal of Pharmaceutical Sciences, Vol. 22, no. 1, Apr. 2019, pp. 13-19, https://uonjournals.uonbi.ac.ke/ojs/index.php/ecajps/article/view/227.