A. F. Lubis, A. Diana, M. Z. Fikri, and A. Syahputra, “TRAINING FOR THE DEVELOPMENT OF EXTENSIVE MATERIALS IN THE DIGITAL ERA AS A SOLUTION TO FISHERIES EXTENSION ACTIVITIES WITH DIGITAL SUBMITTING OF INFORMATION”, And. Int. J. Social. Entre. Devel., vol. 1, no. 01, pp. 17–20, Nov. 2021.