In the face of a coordinated campaign of public and private intimidation that included the bombing of King’s own home, Montgomery’s black citizens sustained their boycott for over a year. Their determination paid off in late 1956, when the . Supreme Court ruled that the bus segregation statutes were unconstitutional. The victory in Montgomery sparked further civil rights protests and elevated King to a position of national prominence. In early 1957, he joined with other southern ministers to form a regional civil rights organization, the Southern Christian Leadership Conference (SCLC), which elected him its first president.
Throughout his participation in the civil rights movement, King was criticized by many groups. This included opposition by more militant blacks such as Nation of Islam member Malcolm X .  Stokely Carmichael was a separatist and disagreed with King's plea for racial integration because he considered it an insult to a uniquely African-American culture.  Omali Yeshitela urged Africans to remember the history of violent European colonization and how power was not secured by Europeans through integration, but by violence and force. 
Adams, Russell, Great Negroes Past and Present , pp. 106-107. Chicago, Afro-Am Publishing Co., 1963.
Bennett, Lerone, Jr., What Manner of Man: A Biography of Martin Luther King, Jr. Chicago, Johnson, 1964.
I Have a Dream: The Story of Martin Luther King in Text and Pictures . New York, Time Life Books, 1968.
King, Martin Luther, Jr., The Measure of a Man . Philadelphia. The Christian Education Press, 1959. Two devotional addresses.
King, Martin Luther, Jr., Strength to Love . New York, Harper & Row, 1963. Sixteen sermons and one essay entitled "Pilgrimage to Nonviolence."
King, Martin Luther, Jr., Stride toward Freedom: The Montgomery Story . New York, Harper, 1958.
King, Martin Luther, Jr., The Trumpet of Conscience . New York, Harper & Row, 1968.
King, Martin Luther, Jr., Where Do We Go from Here: Chaos or Community? New York, Harper & Row, 1967.
King, Martin Luther, Jr., Why We Can't Wait . New York, Harper & Row, 1963.
"Man of the Year", Time , 83 (January 3, 1964) 13-16; 25-27.
"Martin Luther King, Jr." , in Current Biography Yearbook 1965 , ed. by Charles Moritz, pp. 220-223. New York, . Wilson.
Reddick, Lawrence D., Crusader without Violence: A Biography of Martin Luther King, Jr . New York, Harper, 1959.