The second decade of informal sector studies : an annotated bibliography / L. A. S.Ranjith Perera, A.T. M. Nurul Amin. Perera, L. A. S.Ranjith. Amin, A.T. M. Nurul jt. aut. Urban communities Bibliographies 307.76016 PES Includes index. Bangkok : Asian Institute of Technology, 1993. 1993. 1993 Text vii, 156 P. ; eng "Studies in urban informal sector" : HSD referencematerials ; no. 28