MURASHKO, Alex. John Piper Preparing to Step Down from Pastorate [online]. Singapore: March 30, 2012, [cit. 2012-03-31]. Dostupné online. Archivované 2013-01-19 z originálu.
christianpost.com
sg.christianpost.com
MURASHKO, Alex. John Piper Preparing to Step Down from Pastorate [online]. Singapore: March 30, 2012, [cit. 2012-03-31]. Dostupné online. Archivované 2013-01-19 z originálu.
christianpost.com
BLAIR, Leonardo. John Piper to Leave Bethlehem Church for a Year in May [online]. Singapore: Christian Post, March 21, 2013, [cit. 2013-04-02]. Dostupné online.
