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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p201-208
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p229-236
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v14n01.p49-56
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v14n01.p35-41
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v14n01.p43-48
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