Judul asli : Son, you need to study money
Bibliografi : hlm. 116-117
No Inv.: 136189/SM/Perp/13/1c
Bibliografi : hlm. 241
No Inv.: 513/AF/Perp/91/1c~603/AF/Perp/91/1c
No Inv.: 109794/PSM/Perp/07/1c
No Inv.: 114769/S/Perp/08/1c~117488-117491/P/Perp/09/4c~120499/SM/Perp/09/1c~134749/SM/Perp/13/1c
No Inv.: 132263/SM/Perp/12/1c
No Inv.: 133933/SM/Perp/13/1c~136509/SM/Perp/13/1c