Stewart, Charles; Reynolds, Mark (1 Ocak 1990). "Television Markets and U. S. Senate Elections". Legislative Studies Quarterly. 15 (4). ss. 495-523. doi:10.2307/439894. JSTOR439894.
Stewart, Charles; Reynolds, Mark (1 Ocak 1990). "Television Markets and U. S. Senate Elections". Legislative Studies Quarterly. 15 (4). ss. 495-523. doi:10.2307/439894. JSTOR439894.