Espitia-López, J. M., Ramírez-Ruiz, A. C., & Méndez-Zuluaga, J. R. (2007). Physical modelling in reduced dimensions of contention walls made of reinforced earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিEspitia-López, Jairo Martín, Ana Carolina Ramírez-Ruiz, এবং José Rodrigo Méndez-Zuluaga. Physical Modelling in Reduced Dimensions of Contention Walls Made of Reinforced Earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিEspitia-López, Jairo Martín, et al. Physical Modelling in Reduced Dimensions of Contention Walls Made of Reinforced Earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.
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