pP๊NCYyI๐ฎF3Ep๊Ep๑z
ฟฒซํ[h
ก138โฺ ๑สก
sณ๐I
ณ@๐Fgather
@ิF839b
ณ๐F30โ
ๆ139โฺ
ฒธEชส
survey
scrutiny
research
investigation
observation
j [ึ
ฤงํ