Brihat Parashara Hora Shastra
सार्द्धौकभागाः शेषाणां विश्वकाः परिकीर्तिता। अथ वक्ष्ये विशेषेण बलं विंशोपकाह्वयम्॥ २१॥
When the 16 divisions (Shodash Varg Scheme) are considered together.
english translation
sArddhaukabhAgAH zeSANAM vizvakAH parikIrtitA। atha vakSye vizeSeNa balaM viMzopakAhvayam॥ 21॥
hk transliteration by Sanscript