Muthmainnah, M., A. G. Marzuki, S. Santiana, E. Erizar, and N. Nursyam. “Utilizing Smartphone-Based Pinterest Applications in Developing EFL Students Speaking Skills in Indonesia”. JEES (Journal of English Educators Society), Vol. 7, no. 2, Oct. 2022, pp. 205-9, doi:10.21070/jees.v7i2.1672.