Aiu Ahra
Sky
Gramedia Pustaka Utama, 2016
 Buku Teks
Bernardus Nathanael Aditya Hartanto
Evaluasi proses financial due diligence pada tahap akuisisi : kasus PT SKY dan PT BLUE = Evaluation of the financial due diligence process on the acquisition stage : the case of PT SKY and PT BLUE
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
 UI - Tugas Akhir
Picturesque, tectonic, romantic: helliwell+Smith blue sky architecture/teks by Trevor Boody, preface by Peter Davey
The Images Publishing Group, 1999
 Buku Teks SO
Ishimure Michiko's writing in ecocritical perspective : between sea and sky
edited by Bruce Allen and Yuki Masami
Lexington Books, 2016
 Buku Teks SO
Adel Fisli
Preparation and characterization of Fe3O4/SiO2/TiO2 composite for methylene blue removal in water
2017
 Artikel Jurnal