Azhari, H. Susiknan Prof Dr Kalender Islam : Ke arah integrasi Muhammadiyah-NU / Prof. Dr. H. Susiknan Azhari - Yogyakarta : Museum Astronomi Islam, 2012. - xviii, 336 p. ; 21 cm. Include index. ISBN: 9786021905159 (pbk.) Subjects--Topical Terms: Calendar, Islamic LC Class. No.: CE59