00682nam a2200205Ia 4500 CTU_86929 210402s9999 xx 000 0 und d 338.927 S617 Singer, Hans Technologies for basic needs Hans Singer Geneva International Labour Office 1977 Suggesting new criteria for establishing socially oriented technology policies in the developing economy Technology,Công nghệ Developing countries,Quốc gia đang phát triển Nguyên Trung tâm Học liệu Trường Đại học Cần Thơ