Vi Thy Sas Kak Nak Nea Ka Re Nay Mouy Chom Nun

Title: Vi Thy Sas Kak Nak Nea Ka Re Nay Mouy Chom Nun ( Squaring Numbers )
Author: Khem Mi
Publishing date: 2012
Genre: Maths
Format: PDF ( Adobe Acrobat Reader is required )