٤٠٨- Scott (H.) , In The High Yemen, London, ١٩٤٧
٤٠٩- Sedilbot (L.B.) , Histoire Generaie Des Arabs, Paris, ١٨٧٧
٤١٠- Smith (S.) , Events In Arabia In The ٦th Century A.D., Bsoas, ١٩٥٤
٤١١- Smith (W.) , A Dictionary Of The Bible, ٣ Vols. London
٤١٢- Smith (W.R.) , Kinship And Marriage In Early Arabia, London, ١٩٠٧
٤١٣- Smith (W.R.) , Lectures On The Religion On The Semites, London, ١٩٢٧
٤١٤- Shahid (I.) , Pre-Islamic Arabia, In Chi, I, Cambridge, ١٩٧٠
٤١٥- Sprenger (A.) , Das Leben Und Die Lehre Des Mohammad, Berlin, ١٨٦١
٤١٦- Sprenger (A.) , The Campaign Of Aelius Gallus, Jras, London, ١٨٧٣
٤١٧- Stark (R.F.) , An Exploration In The Hadhramaut And Journey To Coast, In Gj, Xciii, ١٩٣٩
٤١٨- Starcky (J.) , The Nabataeans, A Historical Sketch, Ba, ١٨, ١٩٥٥
٤١٩- Strabo, The Geography Of Strabo, Trans, By H.L. Jones, ٨ Vols., London, ١٩٤٩.
٤٢٠- Tarn (W.W.) , Ptolemy Ii And Arabia, Jea, ١٥, ١٩٢٩
٤٢١- Thesiger (W.) , Arabian Sands, N.Y., ١٩٥٩
٤٢٢- Thomas (Betram) , Arabia Felix, Across The Empty Quarter Of Arabia, N.Y., ١٩٣٢.
٤٢٣- Thompson (G. Caton) , Climate, Irrigation And Early Man In The Hadhramaut, Gj, ٩٣, ١٩٣٩
٤٢٤- Thompson, (G. Caton) , The Tombs And Moon Temple Of Hureidha, Hadhramaut, Oxford, ١٩٤٤
٤٢٥- Twitcheh (K.S.) , Saudi Arabia With An Account Of DevelopMent Of Its Natural Resources, Princeton, ١٩٤٣