6 1 50 cara tercepat mencapai penjualan lebih banyak dengan sedikit beban mental Johnson, Spencer Primary Author mixed material Jakarta Erlangga 1986 Blanchard, Kenneth H. Primary Author Johnson, Spencer Additional Author Palupi, Sri Hasta Additional Author mixed material Jakarta Penerbit Erlangga 1986 Blanchard, Kenneth H. Primary Author Johnson, Spencer Additional Author mixed material 042508034X New York : Berkley 1982 an a-mazing way to deal with change in your work and in your life Blanchard, Kenneth H. Additional Author Johnson, Spencer Primary Author mixed material 0399144463 New York Putnam's Sons 1998 cara cerdas menyiasati perubahan dalam hidup dan pekerjaan Johnson, Spencer Primary Author Prakoso, Juni Additional Author mixed material 9792024255 Jakarta Elex Media Komputindo 2001 Johnson, Spencer Additional Author Blanchard, Kenneth Primary Author mixed material Jakarta Pustaka Binaman Pressindo 1984