Daftar Pustaka
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Chen, S and Liu, B. 2010. The Scrambling Index of Symmetric Primitive Ma-trices. Linear Algebra and its Applications, Volume 433, Issue 6, 1110-1126.
Gao, Y and Shao, Y. 2013. Scrambling Index of primitive Digraphs Consisting of Exactly Two Cycles. Ars Combinatoria.
Harleni, S. 2014. Batas Atas untuk Scrambling Index dari Graf Primitif. [Tesis]. Medan: Universitas Sumatera Utara, Program Pascasarjana.
Syahmarani, A. dan Suwilo, S. (2012). Vertex exponents of a class of two-colored hamiltonian digraphs. J. Indones. Math. Soc., Vol 18, No. 1, 1-19.
