4 1 50 models for superior performance Spencer, Lyle M Primary Author Spencer, Signe M. Additional Author mixed material 047154809X New York John Wiley & Sons 1993 412usfTtBzL._SX345_BO1%2C204%2C203%2C200_.jpg.jpg mengukur, menilai, dan menyeleksi orang-orang terbaik dalam perusahaan Davis, Tony Primary Author mixed material 9794422444 Jakarta Penerbit PPM 2009 download_%2823%29.jpg.jpg seni mengarahkan untuk mendongkrak kinerja Whitmore, John Primary Author mixed material 9796056240 Jakarta Gramedia Pustaka Utama 1997 WIN_20200117_08_44_33_Pro_%282%29.jpg.jpg state-of-the-art strategies for enhancing human performance Rothwell, William J Primary Author mixed material 0814402852 New York Amacom 1996 download_%281%29.jpg.jpg