122. Sectoral coverage and prices of carbon pricing mechanisms introduced since 1990 Bookmark Format Single study
123. SIPRI's databases (Stockholm International Peace Research Institute) Bookmark Format Data archive or collection
124. State Fragility Index and Matrix, Time-Series Data, 1995-2018 Bookmark Format Series - completed
128. Transition to agriculture and first state presence: A global analysis Bookmark Format Single study
129. Transnational Social Movement Organization Dataset, 1953-2003 Bookmark Format Series - completed