| Author | Popularity |
| Cashdan, Asher |
3 |
| Open University. Personality Growth and Learning Course Team |
3 |
| Asher, Robert E. |
2 |
| Abbas Dehghan |
1 |
| Abbas Rezaianzadeh |
1 |
| Abdonas Tamosiunas |
1 |
| Abdul Basit |
1 |
| Abdul Hamid Zargar |
1 |
| Abdullah Alkandari |
1 |
| Abdullatif Husseini |
1 |
| Abhijit Sen |
1 |
| Abla M Sibai |
1 |
| Abu AM Hanif |
1 |
| Adela Chirita-Emandi |
1 |
| Adelheid Weber |
1 |
| Adolfo Rubinstein |
1 |
| Adrian Richter |
1 |
| Adroaldo Cesar Araujo Gaya |
1 |
| Afshin Ostovar |
1 |
| Agneta Sjöberg |
1 |
| Agnès Le Port |
1 |
| Agustinus Soemantri |
1 |
| Ahmad A Zainuddin |
1 |
| Ahmad Faudzi Yusoff |
1 |
| Ahmad Reza Dorosty |
1 |
| Ahmed A Madar |
1 |
| Aida Pilav |
1 |
| Akihiro Yoshihara |
1 |
| Akram Pourshams |
1 |
| Ala'a Alkerwi |
1 |
| Alain Morejon |
1 |
| Albertino Damasceno |
1 |
| Alberto Barceló |
1 |
| Alberto Palloni |
1 |
| Albina A Fakhretdinova |
1 |
| Alejandro Diaz |
1 |
| Aleksander Giwercman |
1 |
| Aleksandra Gomula |
1 |
| Aleksandra Piwonska |
1 |
| Aletta E Schutte |
1 |
| Alexander D Deev |
1 |
| Alexandra M Cucu |
1 |
| Alexandre C Pereira |
1 |
| Alfonso Siani |
1 |
| Ali Ahmadi |
1 |
| Ali Akbar Shayesteh |
1 |
| Ali Esmaeili |
1 |
| Ali Ghanbari |
1 |
| Ali Reza Safarpour |
1 |
| Alibek Mereke |
1 |