Narapatijayacarya 5.5.3

One should place [the sets] beginning with a-va-ka-ha-ḍa in order in the intermediate directions beginning with the northeast; / by fives in sequence, one should apply the pure phonemes:

a, va, ka, ha, ṅa; mo, me, mu, mi, ma;

i, vi, ki, hi, ṅi; ṭo, ṭe, ṭi, ṭa, ṭa;

u, vu, ku-gha, ha, ḍu; po, pe, ṣa-ṇa, pi, pa;

ṅa, cha, pu, ṭha;

e, ve, ke, he, ḍe; ro, re, ru, ri, ra;

o, vo, ko, ho, ḍo; to, ta, tu, ti, ta;

la, li, lu, le, lo; ṣo, jo, bho, yo, no;

ca, ci, cu, ce, co; ṣe, je, bhe, ye, ne;