Zatwardnicki Sawomir

title	ISBN-13 (ISBN-10)	year of publication
Abraham. Meandry wiary	978-83-7033-767-4 (83-7033-767-8)	2011
Pomoc przeciw nieprzyjaciolom twoim	978-83-7595-852-2 (83-7595-852-2)	2014
Tata strongman	978-83-7482-478-1 (83-7482-478-6)	2012