@book{Abu200917769,
  title     = {Taqwim Ushul Al Fiqh wa Tahdid Adillah Asy-Syari Vol. 3},
  author    = {Abu Zaid Ubaidillah bin Umar Ad-Daburi Al-Hanafi},
  publisher = {Maktabah Rusyd},
  year      = {2009},
  isbn      = {978-9960-01-785},
}