<ul><li><span style="font-family: Arial, Helvetica, Geneva, Verdana, sans-serif; font-size: 12px; line-height: 1.5;">René Appel, Spannende verhalen schrijven. (Augustus, 2007)</span></li><li><span style="font-family: Arial, Helvetica, Geneva, Verdana, sans-serif; font-size: 12px; line-height: 1.5;">Janet Laurence, Writing Crime Fiction. (Studymates, 2007)</span></li><li><span style="font-family: Arial, Helvetica, Geneva, Verdana, sans-serif; font-size: 12px; line-height: 1.5;">Kathy Lynn Emerson, How to Write Killer Historical Mysteries. (Perseverance Press, 2008)</span></li></ul>