Syamsyir, S., S. . Uddin, N. . Erlinda, and B. Basrizal. “Development of a Diesel Engine Maintenance Textbook for Nautical Technology Students at West Sumatra Shipping Polytechnic”. Global Education Journal, vol. 3, no. 2, Aug. 2025, pp. 943-8, doi:10.59525/gej.v3i2.947.