by Ir. Mul Muyani Sutedjo $6.00
by Dr. Aidh Al-Qami $6.00
by Syekh Fauzi Muhammad $6.00
by Abdurrazak Naufal, Terj. H.A. Bukhari $7.00
by Wahyudin $6.00
by Prof. Dr. Suharsimi Arikunto $13.00