6Noah P.Mark,Daniel R.Harris.Roommate’s Race and the Racial Composition of White college Students’Ego Networks.Social Science Research 2012,41:331-342.
7James Moody:Race,School Integration,and Friendship Segregation in America.AJS2001,107(3):679-716.
8Maureen T.Hallinan and Ruy A.Teixeira.Opportunities and Constraints:BlackWhite differences in the Formation of Interracial Friendships.Child Development1987,58(5):1358-71.
9Maureen T.Hallinan,Different Preferences or Different Opportunities?Explaining race Differentials in the Academic Achievement of Friends.Social Forces1982,61(1):56-72.
10Jennifer Flashman,Different Preferences or Different opportunities?Explaining Race Differentials in the Academic Achievement of Friends.Social Science Research2012,41:888-903.
