Just surfing around and I came across this link. I think it explains primary secondary very well and in a simple easy to read manner.
http://www.laars.com/LinkClick.aspx?fileticket=eIKxByj44gI=&tabid=1611&mid=4041
Please chime in if I am right or wrong.
Its a lengthy but easy read.
http://www.laars.com/LinkClick.aspx?fileticket=eIKxByj44gI=&tabid=1611&mid=4041
Please chime in if I am right or wrong.
Its a lengthy but easy read.