In QWEB:

You could do it using the ol tag like:

<ol type="a">
    <li>name</li>
    <li>birthday</li>
</ol>

http://www.w3schools.com/tags/att_ol_type.asp

In RML:

You could do it using the ol tag like:

<ol bulletType="a">
    <li>name</li>
    <li>birthday</li>
</ol>

See more here:

http://www.reportlab.com/examples/rml/test/test_046_lists.rml

Mr Axel, thanks before i want ask again

i have use this code

<ol bulletType="a">

    <blockTable colWidths="1.5cm,8.5cm,8cm" style="Table_String2">

        <tr>

            <td><li><para style="terp_default_right">.</para></li></td>

            <td><para style="terp_default">Projek name </para></td>

            <td><para style="terp_default">: [[ x.nama_proyek ]]</para></td>

        </tr>

    </blockTable>

</ol>

but its doenst work, areu u know how to solve this code?

i want show