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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n02.p139-149
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p165-175
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p177-188
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p215-222
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p189-199
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p223-227
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p237-245
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpte.v13n03.p247-253
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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.p57-63