1990
�1 
http://www.4shared.com/document/_u0_eCH8/etyud_1990_01.html 
�2 
http://www.4shared.com/document/QwrAuhOW/Etyud_1990_02.html

1991 
�3
http://www.4shared.com/document/f_WDo_iV/Etyud_1991_03.html
�5
http://www.4shared.com/document/q9DaEMbJ/Etyud_1991_05.html 
�7
http://www.4shared.com/document/YZMOROBg/Etyud_1991_07.html

1992
�10
http://www.4shared.com/document/LXhf7Wsk/etyud_1992_10.html
�11
http://www.4shared.com/document/qVSFkAjE/etyud_1992_11.html
�12
http://www.4shared.com/document/D4S2nk_E/etyud_1992_12.html 
�13-14
http://www.4shared.com/document/7Sj6Abas/Etyud_1992_13-14.html 
�15-16
http://www.4shared.com/document/01hm8GKk/etyud_1992_15-16.html
�17-18
http://www.4shared.com/document/l0MXS4Tg/etyud_1992_17-18.html

1993
�19-20
http://www.4shared.com/document/RkEzH23J/etyud_1993_19-20.html 
�21-22
http://www.4shared.com/document/AiX0rV-V/etyud_1993_21-22.html 
�23-24
http://www.4shared.com/document/Qbuh_xt7/etyud_1993_23-24.html
�25-26
http://www.4shared.com/document/iAHpvB1W/etyud_1993_25-26.html 
�27-28
http://www.4shared.com/document/4hZRWFS3/etyud_1993_27-28.html
�29-30
http://www.4shared.com/document/ZBeQfa88/etyud_1993_29-30.html

1994 
�31-32
http://www.4shared.com/document/xdZIVpA3/etyud_1994_31-32.html
�33-34
http://www.4shared.com/document/bguoaeL7/etyud_1994_33-34.html
�35
http://www.4shared.com/document/TZFDd3yS/etyud_1994_35.html