From the author's thesis that discusses built space in Yemen as observed in the forms taken from the earliest phases of the process of building and dwelling in an agricultural territory to the increasingly complex expressions of settling and developing urban structures, before and after Yemen's Republican Revolution of 1962.

Varanda, Fernando. "Introduction: Location & Comprehensive Historic Periods," in Tradition and Change in the Built Space of Yemen. Ph.D diss., University of Durham, 1994.

Courtesy of Fernando Varanda