ืืืฆืจืื ืืืขืื ืขืกืงืื
ืืขื ืขืกืง ืื ืืจืฆืื ื ืืจืืืฉ ืืืฆืจืื ืืืืืืืช ืืฆืืจื ืฉืืืืงื
ืื ืื ืืจืฆืื ื ืืขื ืืื ืืืชื ื ืืงื ืืช ืืช ืืืืฆืจืื ืฉืื
(Business To Business (B To B
ื ื ืคื ื ืืืื ื ืื ืืฉื ืืืืื ืื ืืืืคืื ืขื ืืคืจืืื ืื ืฉืื
ืืชืช ืื ื ืชืื ืื ืขื ืืืืจืื ืืฉืืื ืืืื ื ืืกืคืงื
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