Uris, Auren
The efficient executive
McGraw-Hill , 1957
Buku Teks
Efficient reading
Artikel Jurnal
Marpaung, Siti Khairiyah
Strategi untuk Menuju Organisasi yang Agile, Efektif, dan Efisien di Salah Satu Kementerian di Indonesia = Strategy Towards an Agile, Effective, and Efficient Organization in a Ministry in Indonesia
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2023
UI - Tesis (Membership)
Kennedy, Barry W.
Energy efficient transformers
McGraw-Hill, 1998
Buku Teks
Lloyd, Lewis E.
Techniques for efficient research
Chemical Publishing Company, Inc., 1966
Buku Teks