Sandra Fikawati, author
Career Development Center Universitas Indonesia, 2011
UI - Makalah dan Kertas Kerja
Her Majesty's Stationery Office, 1987
Buku Teks
UPM- UNESCO-UNEP International Environmental Education Programme , 1987
Buku Teks
Asian Development Bank, 1994
Buku Teks
National Institute of Educational Planning and Administration , 1985
Buku Teks