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“Evaluación de la calidad de aceites lubricantes de motores de la central térmica esmeraldas ii, por ftir” (2019) Revista UTCiencia: i-ISSN: 1390-6909. e-ISSN: 2602-8263, 6(1), pp. 50–59. Available at: https://investigacion.utc.edu.ec/index.php/utciencia/article/view/257 (Accessed: 6 August 2026).