Bedagama, D., D. Rukmini, and D. A. Linggar Bharati. “The Existence of Representational Meaning in Supporting Ideational Meaning in the Radio Communication On Board Texts in MarEngâ„¢ Learning Tool”. English Education Journal, Vol. 11, no. 1, Mar. 2021, pp. 149-5, doi:10.15294/eej.v11i1.43139.