فهرس المقالات 3–Methyl-1-phenyl-2-pyrazoline-5-one حرية الوصول المقاله صفحة الملخص نص كامل 1 - Synthesis of 4,4´-(Arylmethylene)bis(1H-pyrazol-5-ols) catalyzed by nanosilica supported perchloric acid in water Bahareh Sadeghi Maryam Ghorbani Rad