@book{ BA73873865,
  author    = "Hatta, Mohammad and Widjaja, I. Wangsa and Swasono, Meutia F.",
  title     = "Kumpulan pidato",
  publisher = "Toko Gunung Agung, Divisi Penerbit",
  year      = "2002",
  edition   = "Cet. 2",
  URL       = "https://ci.nii.ac.jp/ncid/BA73873865"
}