Suryandari, N., and Q. N. Wijayani. “Petis and Madurese Cultural Identity: Identitas Budaya Petis Dan Madura”. Indonesian Journal of Law and Economics Review, vol. 7, May 2020, p. 10.21070/ijler.2020.V7.457, doi:10.21070/ijler.2020.V7.457.