List of Articles principal component analysis Open Access Article Abstract Page Full-Text 1 - Contamination of arable topsoil by organic and inorganic pollutants around petroleum products handling facilities Gregory Sikakwe Bennet Ilaumo 10.30495/ijes.2022.1943042.1663 Open Access Article Abstract Page Full-Text 2 - Principal Component Analysis for Soil Conservation Tillage vs Conventional Tillage in Semi Arid Region of Punjab Province of Pakistan Ijaz Rasool Noorka Shabir A Shahid Saeed Rouf