Bibliografi : hlm. 176-179
No Inv.: 67997/PSM/00/1c~108935-108939/P/Perp/06/5c~124959-124963/P/Perp/10/5c~128005/SM/Perp/10/1c~134959/SM/Perp/13/1c~135963/SM/Perp/13/1c~139725-139729/P/Perp/14/5c~140373/S/Perp/14/1c~140744/PH/Perp/14/1c
Bibliografi : hlm. 233-236
Judul Asli : Basic Montessori, Learning Activities for Under-Fives. Bibliografi : hlm. 376-377
Bibliografi : hlm. 263-265 No Inv.: 132993/PSM/Perp/12/1c~141079/PSM/Perp/14/1c
Judul asli : "Positive Discipline"
Bibliografi : hlm. 197-198
No Inv.: 1333461,133195,132409/S/Perp/12/3c~135592/SM/Perp/13/1c~139132-139136/P/Perp/14/5c~140969/PSM/Perp/14/1c