Bibliografi :hlm 350-390
Bibliografi : hlm. 237-239
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Bibliografi : hlm. 107-109 No Inv.: 131138/SM/Perp/12/1c
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Judul asli : Bittersweet : how sorrow and longing make us whole
Bibliografi : hlm. 177-181
No Inv.: 8390-8394/P/Perp/92/5c~6368-6377/P/Perp/95/10c
Judul asli : "Secrets of Power Presentations"
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