The mid-1940s theorists challenged Wilson and Gulick. The politics-administration dichotomy remained the center of criticism. In the 1960s and 1970s, government itself came under fire as ineffective, inefficient, and largely a wasted effort. There was a call by citizens for efficient administration to replace ineffective, wasteful bureaucracy. Public administration would have to distance itself from politics to answer this call and remain effective. Concurrently, after World War II, the whole concept of public administration expanded to include policy-making and analysis, thus the study of administrative policy making and analyses was introduced and enhanced into the government decision-making bodies. Later on, the human factor became a predominant concern and emphasis in the study of Public Administration. This period witnessed the development and inclusion of other social sciences knowledge, predominantly, psychology, anthropology, and sociology, into the study of public administration. Fritz Morstein Marx with his book "The Elements of Public Administration (1946), Paul H. Appleby "Policy and Administration' (1952), Frank Marini "Towards a New Public Administration' (1971), and others that have contributed positively in these endeavors.