Urbano-Noguera, R. D., Estupiñan-Duran, H. A., & Neira-Arenas, G. (2020). Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals. Universidad Pedagógica y Tecnológica de Colombia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Urbano-Noguera, Ruben Dario, Hugo Armando Estupiñan-Duran, و Gustavo Neira-Arenas. Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals. Universidad Pedagógica y Tecnológica de Colombia, 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Urbano-Noguera, Ruben Dario, et al. Application of Micro-Raman Spectroscopy for the Quantitative Analysis of Vitrinite Reflectance in Medium and High Rank Colombian Coals. Universidad Pedagógica y Tecnológica de Colombia, 2020.
