For serious studies of Pashto language I recommend reading these early but fundamental works, which were not only the first methodical analyses of Pashto - these works also provided a basis for further Pashto examination. Unfortunately these books were not written by Afghans or Pashtuns, but by British officers and hobby linguists who were fluent in Pashto since they have learned this language (or consulted Pashtuns to teach them) during their missions in Afghanistan and NWFP.
1. A dictionary of the Pukkhto or Pukshto Language, in which the words are traced to their sources in the Indian and Persian languages
by Henry Walter Bellew
[You must be registered and logged in to see this link.]2. A Grammar of the Pukkhto Or Pukshto Language (1867) with dialogues and exercises
by Henry Walter Bellew
[You must be registered and logged in to see this link.]3. A Manual of Pushtu (1921)
by Roos-Keppel
[You must be registered and logged in to see this link.]4. A Dictionary of the Puk'hto, Pus'hto, or language of Afghans (1867)
by Major H. G. Raverty
[You must be registered and logged in to see this link.]5. A grammar of the Pukhto, Pushto, or language of the Afghans; together with translations from the articles of war, and remarks on the language, literature, and descent of the Afghan tribes (1867)
by Major H. G. Raverty
[You must be registered and logged in to see this link.]6. The Pus'hto manual: Comprising a Concise Grammar, Exercises and Dialogues (1880)
by Major H. G. Raverty
[You must be registered and logged in to see this link.]7. Selections from the Poetry of the Afghans - From the 16th to the 19th century (1862)
by Major H. G. Raverty
[You must be registered and logged in to see this link.]8. Grammar and Vocabulary of Waziri Pashto (1902)
by John Gordon Lorimer
[You must be registered and logged in to see this link.] Afghanistan Analyst Bibliography
[You must be registered and logged in to see this link.] Afghanistan Researching Resources
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