You can try this solution:
In the css file, write these lines:
@font-face {
font-family: "Times New Roman", serif;
font-style: normal;
font-weight: normal;
src: url(../Fonts/TIMES.TTF);
}
And you must add the font TIMES.TFF in the folder Font (inside the epub file). You can do it, for example, with Sigil (be aware with the case letters). (if you want see in other formats, such as italic or bold, you must add the other fonts too).
Then, you have to put in the normal paragraph format (.p), in the css file, the command: font-family: "Leander";
Save all and try it with de Adobe reader.
P.S. Pardon for my "indian" english.
P.SS. Try it now with this file:
http://www.megaupload.com/?d=PJ5NDNU1