List of Articles source rock Open Access Article Abstract Page Full-Text 1 - Biomarker application in the recognition of the geochemical characteristics of crude oils from the five depobelts of the Niger Delta basin, Nigeria Timothy Anyanwu Bassey Ekpo Boniface Oriji 10.30495/ijes.2022.1943029.1664 Open Access Article Abstract Page Full-Text 2 - Organic Geochemical Evaluation of Madbi Source Rock, Al-Jawf Basin, NE Central Yemen Abdulwahab S. Alaug Khaled A. Al-Wosabi