List of Articles اون Open Access Article Abstract Page Full-Text 1 - A Comparative Study of Political Leadership Styles in North Korea and the United States (Case Study: Trump and Kim Jong UN) mohammadbagher khorramshad soheil rajabi ali mohammadzadeh Ebrahim Motaghi Open Access Article Abstract Page Full-Text 2 - Developing a Dynamic Simulation Model for Phosphorus Cycling in Lakes (Case Study: Lake Ontario) H. عبدلآبادی A. سارنگ S. بصام