1. Alassal MA, Hassan AM, Elmamlouk HH (2020) Effect of fines and matric suction on the collapsibility of sandy soils. In: Pinto P, Ou CY, Shehata H (eds) Innovative Solutions for Deep Foundations and Retaining Structures GeoMEast 2019 Sustainable Civil Infrastructures. Springer, Cham
2. Alassal MA (2020) Assessment of factors affecting collapsibility of unsaturated sandy soils. M.S. thesis, Faculty of Engineering, Cairo University, Giza
3. Alwail TA (1990) Mechanism and effect of fines on the collapse of compacted sandy soils. Dissertation, Washington State University, Washington, USA.
4. ASTM (2016a) Standard test method for minimum index density and unit weight of soils and calculation of relative density. D4254, West Conshohocken, PA.
5. ASTM (2016b) Standard test method for measurement of soil potential (suction) using filter paper. D5298, West Conshohocken, PA.