Chanukah.

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Sefer HaTodaah : Rabbi Eliyahu Kitov

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She'elot U'Tshuvot Ohr L'Tzion : Volume #4

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Shefa Chaim - Chidushim & Pilpulim al Chanukah (Klausenberg Rebbe)

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Shemateta De'Moshe - Rabbi Moshe Feinstien

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Shemen Rosh : Chanukah (R' Asher Anshel Katz)

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Shevet HaLevi : Chanukah (Rabbi Shmuel Wosner)

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Shevut Yitzchak : Dinei Ner Shabbat, Tosefet Shabbat, Ner Chanukah, Inyanei Berachot

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Shufra De'Chanukah - Bluzhever Rebbes

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Siach Chanukah & Purim : Rabbi Chaim Kanievsky

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Sichot Rabbi Natan Tzvi al Ha-Moadim

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Sichot Rabbi Shimshon David Pinkus al Moadim (6 Vol.)

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Siddur Kavanot Ahavat Shalom : Chanukah & Purim

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Siddur Rechovot HaNahar - Kavanot Chanukah

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Siddur Torat Chacham : Yemei HaChanukah

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Sifrei HaRashash - Ohr HaLevana / Sar Shalom / Kavanot Sfirat HaOmer...

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Siftei Chaim - Moadim volume 2 (Rabbi Chaim Friedlander)

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Sukkat Chaim al Chanukah : Rabbi Simcha Bunam Lundinski (2 vol.)

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Tiv HaChanukah (Rabbi Gamliel HaCohen Rabinovitz)

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Tiv HaKavanot al Shaar HaKavanot : Chanukah

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Tiv HaMoadim : Chanukah (Rabbi Gamliel HaCohen Rabinovitz)

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Tur V'Shulchan Aruch HaChadash Tzurat HaDaf:Orach Chaim #5(Simanim 495-693)

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U'Matok HaOr al Chanukah : Rabbi Shlomo Levinstein (2 vol.)

Yareiach LaMoadim : Chanukah (Rabbi Yerucham Olshin)

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Yemaleh Pi Tehilatecha: Yamim Noraim, Chanukah & Purim (Rabbi Shteinman)

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Yemei Chanukah : Rabbi David Cohen

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Yemei Shemona - Chanukah

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Yerushalayim B'Moadeha - Chanukah (Rabbi Avigdor Neventzal)

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Yosifun - Yosef ben Gurion (Josephus)