Manzoor และ Tahir. (1997) Knowledge, attitude and practice of lady health workers on primary health care activities in district Lahore of Pakistan. Mahidol University,:ม.ป.ท.Manzoor และ Tahir. 1997. Knowledge, attitude and practice of lady health workers on primary health care activities in district Lahore of Pakistan. ม.ป.ท.:Mahidol University,;Manzoor และ Tahir. Knowledge, attitude and practice of lady health workers on primary health care activities in district Lahore of Pakistan. ม.ป.ท.:Mahidol University, 1997. Print.