Judul asli : "The book of overthinking : how to stop the cycle of worry"
No Inv.: 134366/SM/Perp/13/1c~134984/SM/Perp/13/1c
Bibliografi :283-290
Bibliografi : hlm. 399-414
Bibliografi : hlm. 309 - 314
Bibliografi : hlm. 273-284 No Inv.: 139343, 139344/P/Perp/14/2c~140316-140318/P/Perp/14/3c~141660, 141661/P/Perp/14/2c
Bibliografi : hlm. 439-446 No Inv.: 144668/SM/Perp/14/1c
Bibliografi : hlm. 263-269