1] H. H. Deafalla Taisser Opportunities and challenges of Gum Arabic trade in semi arid regions. A case of South kordofan state, Sudan" - FORESTRY SCIENCE AND PRACTICE FOR THE PURPOSE OF SUSTAINABLE DEVELOPMENT OF FORESTRY 2012, 29.08.2012.
(https://ekonferencije.com/sr1/rad/opportunities-and-challenges-o/1689)

2] H. H. Deafalla Taisser Non-wood Forest Products: Impacts of Socio-economic Factors to Consumption and Marketing in Rural Semi-arid Areas" - FORESTRY SCIENCE AND PRACTICE FOR THE PURPOSE OF SUSTAINABLE DEVELOPMENT OF FORESTRY 2012, 20.07.2012.
(https://ekonferencije.com/sr1/rad/non-wood-forest-products-impac/1615)

3] H. H. Deafalla Taisser Potentials of Non-wood forest products in medical uses. Case Study of the Nuba Mountains, Sudan" - FORESTRY SCIENCE AND PRACTICE FOR THE PURPOSE OF SUSTAINABLE DEVELOPMENT OF FORESTRY 2012, 20.07.2012.
(https://ekonferencije.com/sr1/rad/potentials-of-non-wood-forest-/1614)