Makala Na Mwandishi Kuwasikiliza WalibyaOctober 1, 1989Gene Knudsen-HoffmanKupata Maeneo ya Kuaminiana: Tafakari juu ya Mkutano na Richard NixonNovember 1, 1986Gene Knudsen-HoffmanKupanda Mbegu za MatumainiFebruary 1, 1985Gene Knudsen-HoffmanKuharibu MoyoNovember 15, 1982Gene Knudsen-HoffmanTafakari juu ya 'Kusema Ukweli kwa Nguvu'October 1, 1981Gene Knudsen-Hoffman