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Page: 1-7
Fredy Torres Mejía, Jhunior Marcía Fuentes, Juan Torres Mejía, Flavio Hernández Bonilla, Ricardo Santos Alemán, Ingris Varela, Shirin Kazemzadeh, Ismael Montero Fernández
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Page: 8-14
Kawakeb A. Saad, Eman A. Alsageer
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10.9734/ajob/2021/v11i130132
Page: 15-21
Regina O. Belga, Florencio P. Mahinay, Manuela Cecille G. Vicencio
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10.9734/ajob/2021/v11i130133
Page: 22-28
Lynn Maori, Kabiru Muhammed, Garba Ibrahim
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10.9734/ajob/2021/v11i130134
Page: 29-35