Brihat Parashara Hora Shastra
एकादिशेषे विज्ञ्याः क्रमात्सप्तदशाधिपाः । रविर्ज्ञोऽर्कसुतो भौमः शुक्रश्चन्द्रो बृहस्पतिः ॥ ३०॥
The remainder will indicate the Dasha. The order of the Dasha Lords is Sūrya, Budh, Śani, Mangal, Śukr, Candr and Guru. The Dashas of the Grahas are 12, 13, 14, 15, 16, 17 and 18 years.
english translation
ekAdizeSe vijJyAH kramAtsaptadazAdhipAH । ravirjJo'rkasuto bhaumaH zukrazcandro bRhaspatiH ॥ 30॥
hk transliteration by Sanscript