1. Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
2. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
3. Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
4. Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran