Smith 1991, pp. 159–167, 229–230: "After the CPB took a Maoist direction in the late 1960s, the "peace and unity" line was denounced by party leaders.... The second important decision was the CPB's enthusiastic adoption of 'Mao Zedong thought'." Smith, Martin (1991). Burma: Insurgency and the politics of ethnicity (1st ed.). London and New Jersey: Zed Books. ISBN0862328683 – via Google Books.