PERFORMANCE AND EVALUATION ON FOUR STORKE SINGLE CYINDER DI DIESEL ENGINE WITH TRAPEZOIDAL GROOVES ON PISTON CROWN. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 12, p. 9756–9763, 2022. Disponível em: http://www.ijfans.org/index.php/Journal/article/view/13842. Acesso em: 25 aug. 2026.