List of Articles ساعت آفتابی Open Access Article Abstract Page Full-Text 1 - Ibn Saffār and the Development of Islamic Astronomy in Andalusia: Finding Qibla Direction in Kitāb al-‘amal bi-l-asṭurlāb and Balāta Sundial (at the Cordova Museum) fatemeh rezaei yonos farahmand musa akrami Qanbarali Roudgar 10.30495/jhcin.2020.16297 Open Access Article Abstract Page Full-Text 2 - Calibration of earth surface received radiation in north east of Iran mahnaz rostamian Amir Hossein Halabian