I have asked and provided my own answer, although it is not good but it works.
Previous Question
However, now I would like to link cells from another sheet. However, the program I wrote could not make reference among cells from one sheet to another sheet.
Example
Sheet1, Column A
Sheet2, row 1
I want to have
Sheet1!A1 = Sheet2!A1
Sheet1!A2 = Sheet2!B2

Is this what you are trying by any chance?